Query: blue tooth adapter for older cars

title: Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger QC3.0 for All Smartphones Audio Players - RM100 Black
text: From the brand Guanda Innovation Never Stops Previous page About us Guanda focuses on automotive peripheral products, wireless earbuds, and provides hundreds of thousands of users with online and offline products and services. We strive for perfection and never satisfy the status quo. Each product has been carefully designed to provide customers with the best product quality and user experience. How did we get our start The founder has ever worked in Huawei's R&D department for 17 years and has rich experience in product design. Our start is to share the best design philosophy and product quality in the industry to Amazon customers. Verified by Amazon Launchpad Based on the excellent and unique product design, we were invited by Amazon Launchpad in 2020. Guanda is the only one brand that verified by Amazon Launchpad in Car FM Transmitter category. Why do we love what we do We love our job. Our Mission is to satisfy people’s pursuit of high-quality life through technological innovation. After purchase, you will get 7*24H online consultation 24 months exchange Lifetime technical guidance Achieve dreams in Guanda Innovation never stops Superior Tech means trust Carefully designed Sturdy Adjustable Support Arm Powerful Clamp with Rubber Mat Performance you want to hear. Visit the Store Safe Driving Visit the Store Next page Product Description Driving Safely, Hitting the Road. Enjoy Your Favorite Tunes. Full Duplex Sound and Lossless Music, multiple Playing with 5 EQ Modes - Normal, Jazz, Classical, Pop, Rock. 1.8" Color Screen Car MP3 Player, Bluetooth FM Transmitter with QC3.0 Charging Port. Superior Technology Means Trust Guanda Bluetooth car charger has built-in over-current, over-voltage, intelligent temperature control, short-circuit protection. Safely apply to all vehicles with voltage of 12V-24V. Hi-Fi Stereo Sound Wonderful Auditory Feast Adopted advanced CVC technology, Guanda Bluetooth car adapter creates an enhanced sound experience for music and reduces background noise for clearer calls. One Click Hands-free Calling & Voice Smart Navigation Guanda’s 4in1 Bluetooth FM Transmitter for Car, you can drive safely. Answer, hang up, reject a call, redial the last number, and pick your favorite song all from one easy to use display. HiFi Stereo Music, Stable Connection, Fast Transmission, Wide Signal Range. RM100 RM200 RM180 RM170 BM100 MM400 MM200 Dual PD 40W Phone Car Charger ✘ ✘ ✘ ✔ ✘ ✘ ✘ Dual Microphone ✘ ✘ ✔ ✘ ✘ ✘ ✘ 1.8" Large Color Screen ✔ ✔ ✘ ✘ ✘ ✘ ✘ QC3.0 Fast Charge ✔ ✔ ✔ ✘ ✘ ✘ ✘ Built-in Battery Up to 10 H ✘ ✘ ✘ ✘ ✔ ✘ ✘ Hi-Fi Quality Music ✔ ✔ ✔ ✔ ✔ ✘ ✘ Noise Cancellation ✔ ✔ ✔ ✔ ✔ ✘ ✘ Advance Bluetooth Technology ✔ ✔ ✔ ✔ ✔ ✘ ✘ AUX Port ✔ ✔ ✘ ✘ ✔ ✘ ✘ TF Card slot ✔ ✔ ✔ ✘ ✔ ✘ ✘ One Hand Operation ✔ ✔ ✔ ✔ ✔ ✔ ✔ Road Partner to Enjoy Journey ✔ ✔ ✔ ✔ ✔ ✔ ✔ 

title: Nulaxy Bluetooth FM Transmitter for Car, Auto Search FM Blank Channel Bluetooth Car Adapter with QC3.0& 5V/2.4A Charging, Support USB Flash Drive, microSD, Aux, EQ, Wireless Handsfree Car Kit -KM29Pro
text: From the brand Previous page We Care What You Care Visit the Store fm transmitter & car charger Visit the Store NX10 Bluetooth Car Adapter NX12 Bluetooth 5.0 FM Transmitter for Car KM29 Bluetooth FM Transmitter KM21 Bluetooth FM Transmitter for Car NX09 Bluetooth Car Adapter KM18COLOR Wireless In-Car Bluetooth FM Transmitter KM18PLUS FM Transmitter for Car C49 Cigarette Lighter Adapter Next page Product Description Read more Read more Bring Bluetooth connectivity to almost any car with Nulaxy Bluetooth FM transmitter. Broadcast audio on an FM bandwidth to enjoy your music or make handsfree calls while you drive. Nulaxy KM29 Pro can search FM blank channel automatically, comes with QC3.0 & 5V/2.4A charging ports to deliver high-speed charging to driver and passenger. User Tips: 1. Please check if both the car radio and transmitter are on the SAME station. If not, please set both of them on the same station. 2. If there are statics when you listen to music, the key really to find a vacancy frequency which is an isolated fully static (sounds awful but keep going) station before you match the transmitter to the full static radio station. For example, one works best on low frequencies (Colorado) 88.9 or so. The high frequencies (102.5+) do not work as well. 3. If there is no sound when you make a phone call, you can try to turn up the voice call volume on your cell phone and volume of the transmitter. Find a vacant or non-interfered frequency and sync Nulaxy device to that frequency for minimized static noise. 4. To achieve best audio quality, please set the volume on your phone to maximum and then adjust the volume for your car stereo; you are not suggested to adjust volume of your car speaker to maximum (this will bring lot noise). Read more Click Here Click Here Click Here Click Here Click Here Bluetooth Version V3.0 V3.0 V3.0 V5.0 V3.0 USB Charge Port QC3.0 / 5V 2.4A QC3.0 / 5V 2.4A QC3.0 / 5V 2.4A QC3.0 5V 2.4A Battery/ Voltage Display Permanent display Permanent display Permanent display Temporary display after power on Temporary display after power on Music Playing Sources Bluetooth/micro SD/ USB Flash Drive/ AUX Bluetooth/micro SD/ USB Flash Drive/ AUX Bluetooth/micro SD/ USB Flash Drive/ AUX Bluetooth/micro SD/ USB Flash Drive Bluetooth/micro SD/ USB Flash Drive Activate Siri/ Google Now X X X ✓ X Auto Scan X ✓ X X X 

title: Nulaxy Wireless In-Car Bluetooth FM Transmitter Radio Adapter Car Kit W 1.8 Inch Display Supports TF/SD Card and USB Car Charger for All Smartphones Audio Players-KM18 color
text: From the brand Previous page We Care What You Care Visit the Store fm transmitter & car charger Visit the Store NX10 Bluetooth Car Adapter NX12 Bluetooth 5.0 FM Transmitter for Car KM29 Bluetooth FM Transmitter KM21 Bluetooth FM Transmitter for Car NX09 Bluetooth Car Adapter KM18COLOR Wireless In-Car Bluetooth FM Transmitter KM18PLUS FM Transmitter for Car C49 Cigarette Lighter Adapter Next page Product Description Read more Read more Smart QC3.0 Quick Charge This Nulaxy fm transmitter is designed with 2 USB port, one is the smart QC3.0 quick charge, the other is 5V/2.4A. Then you can share the usb car charge port with your friends freely. Fast Forward & Fast Backward It features with fast forward & fast backward function through long press the "Previous/ Next" button; then short press to catch up on your favorite podcasts or audio books. Multiple Security Protection Safety is our first concern. The Nulaxy has built-in over-current protection, over-voltage protection, intelligent temperature control and short circuit protection to ensure a safer driving. Read more Car Voltage Detection Designed with 1.8" TFT display, the Nulaxy car bluetooth also equipped with a voltmeter to show you the condition of your car battery. It will always be on the display so you can prevent ever having to jumpstart your car again. 3 Play Music Sources Supports AUX/ Bluetooth/ TF Card music playing sources. To play music with the TF Card, insert the TF Card (up to 32G) with your audio files and the Nulaxy will recognize and play the music automatically. 4 Modes To Play Nulaxy Bluetooth fm transmitter has a wide range of play modes such as Repeat All/ One/ Folder and Random. Also, in TF card mode, you can press M button and select Folder with the Multifunction button, to view files by name. 5 EQ Play Modes With 5 equalization modes, you can adjust the sound you like most and enjoy the most of your songs. And it adopts advanced interference and noise CVC technology creates full duplex sound and suppresses noise and wind. KM18COLOR KM18 KM18PLUS KM29 KM30 NX10 Bluetooth Version V5.0 V5.0 V5.0 V5.0 V5.0 V5.0 Micro SD/TF Card Slot ✓ ✓ ✓ ✓ ✓ ✓ AUX Port ✓ ✓ ✓ ✓ ✓ × USB Charge Port QC3.0 Port*1+5V/2.4A*1 5V/2.1A*1 5V/2.1A*1 QC3.0 Port*1+5V/2.4A*1 QC3.0 Port*1+5V/2.1A*1 QC3.0 Port*1+5V/2.1A*1 EQ MODE 5 EQ Mode((Playing Through SD Card） × × 5 EQ Mode(Playing Through SD Card） Bass&Tre Mode × Caller ID Display ✓ ✓ ✓ ✓ ✓ × Playing Sources Bluetooth/ SD/TF Card/ AUX Bluetooth/ SD/TF Card/ AUX Bluetooth/ SD/TF Card/ AUX Bluetooth/ SD/TF Card/ AUX Bluetooth/ SD/TF Card/ USB/AUX Bluetooth/ SD/TF Card/ USB Activate Siri/ Google Now × × × × ✓ ✓ Playback Modes Repeat All/ Repeat One/ Random/ Repeat Folder(Playing Through SD Card) Repeat All/ Random （Playing Through SD Card） Repeat All/ Random （Playing Through SD Card） Repeat All/ Repeat One/ Random/ Repeat Folder (Playing Through SD Card or USB Flash Drive) Repeat All/ Repeat One/ Random/ Repeat Folder (Playing Through SD Card or USB Flash Drive) Repeat All(Playing Through SD Card or USB Flash Drive)  

title: Anker Roav SmartCharge F0 Bluetooth FM Transmitter for Car, Audio Adapter and Receiver, Hands-Free Calling, MP3 Car Charger with 2 USB Ports, PowerIQ, and AUX Output (No Dedicated App)
text: Product Description SmartCharge F0 Bluetooth FM Transmitter with 2 USB Charging Ports From Roav — Making the smart driving experience accessible to all. A collection of connected devices that enhances your driving experience Created by the same team as Anker—renowned for exceptional quality and innovation. Broadcast Your Music Broadcast music on your mobile phone to an FM frequency for stereo sound delivered through your vehicle's speakers. Seamless Pairing Bluetooth 4.2 automatically connects to the last paired device and provides a stable connection for seamless hands-free calling. Easy Set Up Just plug in, tune your car's radio and SmartCharge F0 to the same FM frequency, and hit the road while listening to your favorite audio. Dual USB Ports Exclusive PowerIQ and VoltageBoost technologies provide high-speed charging from 2 ports for virtually any device. We will replace any defective product within 12 months of purchase, so use your Roav product without any worries.Find Your Car - Multiple location methods help ensure you don’t waste time looking for your car. Product Description SmartCharge F0 Bluetooth FM Transmitter with 2 USB Charging Ports From Roav — Making the smart driving experience accessible to all. A collection of connected devices that enhances your driving experience Created by the same team as Anker—renowned for exceptional quality and innovation. Broadcast Your Music Broadcast music on your mobile phone to an FM frequency for stereo sound delivered through your vehicle's speakers. Seamless Pairing Bluetooth 4.2 automatically connects to the last paired device and provides a stable connection for seamless hands-free calling. Easy Set Up Just plug in, tune your car's radio and SmartCharge F0 to the same FM frequency, and hit the road while listening to your favorite audio. Dual USB Ports Exclusive PowerIQ and VoltageBoost technologies provide high-speed charging from 2 ports for virtually any device. We will replace any defective product within 12 months of purchase, so use your Roav product without any worries.Find Your Car - Multiple location methods help ensure you don’t waste time looking for your car.From the manufacturer Read more Roav, by Anker Innovations, is dedicated to creating connected devices to make driving safer and smarter. SmartCharge F0 Bring Bluetooth connectivity to almost any car with Roav SmartCharge F0. Broadcast audio on an FM bandwidth to enjoy your music or make handsfree calls while you drive. Bluetooth 4.2 Boosted FM Transmission Noise-Cancellation 2 Charging Ports Read more Key Features Stable Connection Bluetooth 4.2 provides a strong connection, wherever you sit in the car. Simultaneous High-Speed Charging 2 USB ports utilize Anker-exclusive PowerIQ for rapid charging for driver and passenger. Enhanced Voice Reception A high-sensitivity mic with advanced noise-suppression ensures anyone you call hears you clearly. Read more Read more SmartCharge F0 SmartCharge F2 SmartCharge F3 SmartCharge T1 SmartCharge T2 SmartCharge Specturm Lite Charging Ports 2 2 2 2 2 2 Charging Technology PowerIQ PowerIQ Quick Charge 3.0 PIQ 2.0 Power delivery & Power IQ Quick Charge 3.0 & PowerIQ Wattage 24W 19.5W 20.5W 20.5W 30W 30W Output 5V / 4.8A 5V / 2.4A+5V / 1.5A QC3.0, 5V / 0.5A QC3.0, 5V / 0.5A Power delivery 18W + 5V / 2.4A QC3.0, 5V / 2.4A Bluetooth Version Bluetooth 4.2 Bluetooth 4.2 Bluetooth 4.2 Bluetooth 4.2 Bluetooth 5.0 Bluetooth 4.1 Music Streaming Via Bluetooth Yes Yes Yes Yes Yes No Calling Via Bluetooth Yes Yes Yes Yes Yes No FM Transmitter Yes Yes Yes Yes Yes No Dedicated App No Roav Charger Roav Charger No No Roav Charger Audio Output Aux Out Aux Out Aux Out/In Aux Out Aux Out No 

title: IMDEN Bluetooth 5.0 FM Transmitter for Car, 3.0 Wireless Bluetooth FM Radio Adapter Music Player FM Transmitter/Car Kit with Hands-Free Calling and 2 USB Ports Charger Support USB Drive
text: Product Description Top Quality 3.0 In-Car Wireless Bluetooth professional-grade FM Transmitter This little gadget with dual USB Ports Charger(one is 3.0 charger), LED digital display screen and Built-In Mic, gives you safer, Flexible and convenient driving experience of hands-free calling, music enjoyment, quick charge. Feature: Wirelessly transmit phone call from mobile phone to car FM stereo system. Switch to hands-free mode automatically from music playing status when receive call. Built-in Microphone. Support music playing from USB. Detect and display the voltage of car battery when power on. With Voice prompts. Low voltage warming warning: Less than 12V (Voice prompt ). Incoming call number announcement. Supports last call redial. Function: Built with a high-performance microphone, with Echo Cancellation and Noise Reduction (CVC) technology offers you a crystal clear calling and safer driving. Two music play mode(pair with the phone via specific Bluetooth or Insert USB Disk into the “Right” USB Port) let you be absorbed in music playing when driving. Built in dual USB ports car charger(one 3.0 speedy charge port), and smart charging IC, automatically detects your devices and charges all cellphone or iPad at optimal speed. Charge two devices simultaneously and fully charged in a short time Super compact and portable design with blue LED digital screen display of FM and car voltage, provides you portable driving travel. NOTE: Please NEVER use it in these conditions: Moist or underwater conditions. Near heater or high-temperature service. With direct and strong sunshine. Never dismantle it without due permission. Package contents: 1x Bluetooth FM Transmitter with Dual USB Charge Port 1x User Guide Product Description Top Quality 3.0 In-Car Wireless Bluetooth professional-grade FM Transmitter This little gadget with dual USB Ports Charger(one is 3.0 charger), LED digital display screen and Built-In Mic, gives you safer, Flexible and convenient driving experience of hands-free calling, music enjoyment, quick charge. Feature: Wirelessly transmit phone call from mobile phone to car FM stereo system. Switch to hands-free mode automatically from music playing status when receive call. Built-in Microphone. Support music playing from USB. Detect and display the voltage of car battery when power on. With Voice prompts. Low voltage warming warning: Less than 12V (Voice prompt ). Incoming call number announcement. Supports last call redial. Function: Built with a high-performance microphone, with Echo Cancellation and Noise Reduction (CVC) technology offers you a crystal clear calling and safer driving. Two music play mode(pair with the phone via specific Bluetooth or Insert USB Disk into the “Right” USB Port) let you be absorbed in music playing when driving. Built in dual USB ports car charger(one 3.0 speedy charge port), and smart charging IC, automatically detects your devices and charges all cellphone or iPad at optimal speed. Charge two devices simultaneously and fully charged in a short time Super compact and portable design with blue LED digital screen display of FM and car voltage, provides you portable driving travel. NOTE: Please NEVER use it in these conditions: Moist or underwater conditions. Near heater or high-temperature service. With direct and strong sunshine. Never dismantle it without due permission. Package contents: 1x Bluetooth FM Transmitter with Dual USB Charge Port 1x User GuideFrom the manufacturer Read more About IMDEN We focus on the electronic products, strive to share the technology and enjoyment with you through our dependable and easy-to-use items. Multifunctional QC3.0 BT 4.2 Bluetooth FM Transmitter A must-have handsfree calling device Featuring one advanced QC 3.0 speedy charge port, IMDEN Bluetooth hands-free FM transmitter is capable of streaming wonderful music and keeping you connected when driving, making your driving more interesting and safer. Built-in microphone with CVC technology offers you a clear talking. Yellow-ray LED displays FM channels and real-time monitoring of automotive voltage intelligently. Dual ports & QC3.0 quick charge multiple devices simultaneously. Pair with all Bluetooth enabled devices and music USB flash driver. Smart Voice Navigation, lets you enjoy effortless driving. Read more Hands-free Calling It is built-in Mic with Echo Cancellation and Noise Suppression (CVC) technology offer you a clear talking. Just one click when receiving a call, the Bluetooth FM transmitter will provide you with the hands-free function and safer driving experience. USB / MP3 Player Music playing via Bluetooth enabled device or USB flash drive, noise and wind suppressed by CVC technology will create full duplex sound quality, lets you enjoy the lossless music whilst driving. Smart Car Locater Function Open the App to get the information of destination on cell phone, broadcast your car navigation more clearly and simply, making you driving safer. Dual Ports & QC3.0 Charger Support charge both devices simultaneously, one is for QC3.0 quick charger. Smart output current pairs all cellphone and tablet, safely charging to your device without damage to the battery. Read more Using Tips: Find out a blank FM frequency locally which is slight rustling sound instead of inserting it into the car lighter. Insert it into the car lighter, tune the transmitter's frequency to the same FM frequency as the car radio, at this moment, your car radio will be quiet without static sound(changing it if it is static). Insert a Micro USB Flash Driver or pair this Bluetooth FM transmitter with your digital device to enjoy music playback or hands-free conversation. How to Adjust Volume? The volume of car radio could reach 1/3 or 1/2, but never exceed 2/3. The volume of transmitter could reach 2/3 or 4/5, but try not to reach the most volume. The volume of cell phone could reach 2/3 or 4/5, but try not to reach the most volume. Read more  

title: Car Adapter in-Car FM Transmitter, Wireless Radio Adapter 1.7 Inch Display, QC3.0/2.4A Dual USB Ports, AUX Output,Mp3 Player with Magnetic Mount and Plate
text: Product Description Read more Easy Operation Comes with HD LED Display and large button. When power on, the car voltage will be displayed on the large screen. The rotatable panel can prevent debris and dust from charging ports. Package includes: 1 x In-car FM transmitter 1 x 3.5mm Audio cable 1 x 3A fuse 2 x Magnetic metal plates 1 x Magnetic car mount 1 x User manual Fast and Safe Charging Orange QC3.0 PROTOCOL USB port: DC3.5-6.5V/ 3A, 6.5-9V/ 2 A, 9-12 V/ 1.5 A Blue 2.4 A USB port supports intelligent output current: 5 V/ 2.4 A Dual USB ports allow you to charge two devices at the same time, no need to worry about power shortage. Compatibility Music playing modes : Via devices and TF card Support TF/ Micro SD card in FAT format up to 32G Compatible with all devices, like iPhone, iPad, iPod, tablet or MP3 player. The device can switch to hands-free mode automatically from music play status when receiving a call. Read more  

title: (Upgraded Version) Bluetooth FM Transmitter, Sumind Wireless Radio Adapter Hands-Free Car Kit with 1.7 Inch Display, QC3.0 and Smart 2.4A Dual USB Ports, AUX Input/Output, TF Card Mp3 Player
text: Product Description Read more Hands-free Calling Build-in microphone, supports hands-free calling. Switch Hands-free mode automatically from music playing status when receiving phone call. High-performance microphone with noise suppression (CVC)technology, grants you crystal clear call. Siri & Google Voice Assistant Turn on the phone BT and search for the name of the BT70. After pairing successfully, press the phone button for 3 seconds in any interface, and start Siri or Google to realize the voice assistant function. Dual Ports & QC3.0 Charger Quick charge for the QC3.0-enabled devices, Up to 4X faster than standard chargers, able to charge compatible devices to 80% in just 35 minutes. The other USB charging port supports 5V/2.4 A output which can intelligently identify android or other devices. Read more Read more Sumind Car Bluetooth FM Transmitter Leather Teardrop Earrings(Colorful Teardrop Earrings) (Upgraded Version) Bluetooth FM Transmitter (Upgraded Version) Sumind Car Bluetooth FM Transmitter (Upgraded Version) Sumind Car Bluetooth FM Transmitter (Upgraded Version) Sumind Car Bluetooth FM Transmitter ASIN B077K4P4BB B07DG2XN9V B0756WZ2V3 B07G5D5S1R B089W7B2MG B08BNRWH5G Magnetic Car Mount ✓ ✓ Smart QC3.0 ✓ ✓ ✓ ✓ ✓ TF Card Slot ✓ ✓ ✓ ✓ ✓ Music Format MP3 WMA MP3 WMA FLAC MP3 WMA FLAC MP3 WMA FLAC MP3 WMA FLAC MP3 WMA FLAC Bluetooth Version JL2.1 4.2 4.2 4.2 4.2 4.2 Battery/ Voltage Display Temporary display after power on Permanent display Permanent display Permanent display Permanent display Permanent display Shutdown Function Remove after use Long pressing the next song key for 5 seconds Long pressing the next song key for 5 seconds Long pressing the next song key for 5 seconds Long pressing the next song key for 5 seconds Long pressing the next song key for 5 seconds Playing Sources Bluetooth/ TF Card/ USB Bluetooth/ TF Card/ AUX Out Bluetooth/ TF Card/ AUX Out Bluetooth/ TF Card/ AUX Out Bluetooth/ TF Card/ AUX Out Bluetooth/ TF Card/ AUX Out 

title: Nulaxy Wireless in-Car Bluetooth FM Transmitter Radio Adapter Car Kit W 1.44 Inch Display Supports TF/SD Card and USB Car Charger for All Smartphones Audio Players-KM18
text: From the brand Previous page We Care What You Care Visit the Store fm transmitter & car charger Visit the Store NX10 Bluetooth Car Adapter NX12 Bluetooth 5.0 FM Transmitter for Car KM29 Bluetooth FM Transmitter KM21 Bluetooth FM Transmitter for Car NX09 Bluetooth Car Adapter KM18COLOR Wireless In-Car Bluetooth FM Transmitter KM18PLUS FM Transmitter for Car C49 Cigarette Lighter Adapter Next page Product Description Previous page Next page  

title: Handsfree Call Car Charger,Wireless Bluetooth FM Transmitter Radio Receiver,Mp3 Audio Music Stereo Adapter,Dual USB Port Charger Compatible for All Smartphones,Samsung Galaxy,LG,HTC,etc.
text: From the brand Previous page FM Transmitter & Car Splitter Visit the Store Next page Product Description Bluetooth Handsfree Car Charger,FM Transmitter&Music adapter,3.1A Dual USB Port You need an In-car FM transmitter to stream music from your phone, tablet, MP3, MP4, TF card,even USB flash disk to the car stereo system. Enjoy music and handsfree call on the road. Play Music in Multi Way With FM signal, it can play music from your Bluetooth-enabled devices to car stereo system. Also support play music from TF card,USB flash disk(Both<=32GB). Easy to switch between Bluetooth, TF card, USB disk mode with long press [ >>I ] key. The priority play sequence is Bluetooth > TF card > USB. Connect bluetooth: 1.Power on the device and has voice prompts: Bluetooth is ready to pair. 2.Turn on cellphone or other bluetooth device and search HY82 in bluetooth column. 3.There has a voice prompts after connected:Bluetooth connected successfully. Bluetooth Version 5.0, Can connect with bluetooth version 5.0 or below version. The FM transmitter will display BT with the voice prompt, "Bluetooth is ready to pair" and the display with alternate from BT to frequency until you connect with Bluetooth or insert the USB. Good Quality and More Compatibility 1.Answer Call:Press the Answer key to answer. 2.Reject Call:Press the Answer key and hold it for 3 seconds to reject. 3.Hang up: While in the calling or dialing state, press Answer key to hold this call. 4.Recall:Press twice to recall the number that called in/out last time. Clear Sound: Easily make crystal clear hands-free calls or listen music with CVC noise cancellation technology. Universal Compatibility: Bluetooth Transmitter perfectly compatible with iPhone, iPad, Samsung Galaxy,Google Pixel and other Bluetooth enabled devices such as MP3,MP4 Player. Plug the FM transmitter to car outlet lighter socket. Turn on the car radio, choose a station, and make sure the station is blank to avoid interference by local radio signal. Hold the fm transmitter answer key until the LED display flashing. Rotation the answer knob to adjust the same channel with car radio FM channel. Press the answer key to fix the channel. Please google blank or try different channels to achieve the best enjoy. The 3.1A USB charging port provides fast charging speed;can charge for ipad, big screen cellphone etc. Another 1.0A designed to charge and read USB flash drive. Please use pure charge line when use this one charging. Car Battery Voltage Function: For 12V car, voltage display of car battery under 11.5V or higher than 14.9V means car battery issue. For 24V car,voltage display of car battery under 23.1V or higher than 27.3V means car battery issue. Compatible iOS and Android phones : Compatible with iPhone 14 / 13 / 12 / 11 / XS/XS Max/XR/X/8 Plus/8/7 Plus/7/6 Plus, iPad Air/Pro/Mini, iPod, Samsung, Samsung Galaxy S22 / S21 / S20 / S8/9/10/Plus NOTE 9/10/+, Google Pixel 2/3/3A/4/XL, Nexus, Motorola, LG, Sony, Nexus, HTC , Tablets, cameras, GPS, Kindle,laptop, etc. Bluetooth Car Adapter HY82 Bluetooth Car Adapter HY89 Bluetooth Car Adapter C87B Car Charger Splitter HY10Q Car Charger Splitter C30 Bluetooth 5.0 5.0 5.0 USB/TF Card Music Player ✓ ✓ ✓ Handsfree Call ✓ ✓ ✓ Cigarette Socket ✓ ✓ Type C ✓ ✓ ✓