Bluetooth FM Transmitter, GRDE Bluetooth Car Adapter, Wireless in-Car Bluetooth Receiver Hands-Free Car Charger with Dual USB Ports Compatible for iPhone Samsung, Supporting TF Card Mp3 Player BROAD COMPATIBILITY - Bluetooth 4.2 Upgraded Version Bluetooth FM transmitter works well with bluetooth enabled devices, like iPhone 8,iPhone 8 plus, iPhone X, iphone 7 iphone 7 plus, Samsung, HTC, LG, Blackberry, Sony, Tablet and iPad etc. LARGE LCD DISPLAY - Bluetooth FM transmitter for car battery voltage level will be detected and displayed on 1.4 inches LCD while the car starts; phone number& name of songs playing through TF Cards could be displayed as well, and voltage display, so the wireless in-car Bluetooth FM transmitter can make sure traffic safely. CRYSTAL SOUND QUALITY - Adopted advanced interference and noise cancellation technology bluetooth car adapter - CVC technology creates full duplex sound and suppresses noise and wind, Bluetooth car adapter makes you enjoy better sound audio in your little music world. HANDS-FREE AND EASY CONTROL - With one multifunctional button, adjust sound volume, change music, answer or reject the hands-free calling. Bluetooth car charger built-in microphone feature supports hands-free talking reduce interference. MORE SURPRISES - Firstly, supports TF/Micro SD memory card in FAT format up to 32G; Secondly, supports A2DP; Thirdly, supports MP3/WMA/FLAC format; Finally, 12 MONTHS-WARRANT, please contact seller directly to initiate return and warranty process if the product has any defect.