Bluetooth Receiver, Elegant Choise Wireless Bluetooth Audio Adapter Dual 2x3.5mm Aux Stereo Output for TV/Home/Car Stereo System,aptX LL,Bluetooth 4.2,NFC-Enabled,A2DP (Black) Low Delay: Bluetooth v4.2 with CSR chipset and aptX low latency technology maximum eliminate audio delay, so you can watch TV / Movie / Video and listen to high-clarity sound in perfect synchronization NFC-Capability: Near field connection, simply put your smartphone or tablet near to the bluetooth adapter to connect, pairing easily Bluetooth Receiver: Audio dual output, connected device with 3.5mm aux input, wireless pair with your Android / iOS phone, tablet, laptop, computer, car AUX, amplifier RCA, speaker AUX ect Extra-Long Play Time: Build-in 300MAH rechargeable lithium battery, runs for an extended period of up to 10 hours on a full charge. Lightweight and portable bluetooth receiver is easy to carry Versatile Extension: Supports hands-free calling with built-in microphone, phone GPS transmit to car audio, more safe and convenient for driving Built-in 16-bit stereo codec, digital-analog conversion SNR up to 85dB CD Level Hi-Fi Sound Quality: B7 Plus works in conjunction with APT-X LL technology to make the sound more prominent and less delay Outstanding Design: Stylish exquisite appearance and rubber oil technology surface, easy to carry CSR Chipset: Bluetooth Adapter works with CSR chipsets which imported from UK to ensure high-quality audio quality Support: Audio Formats: SBC, MP3, AAC, APTX, APTX-LL Multipoint Connection CSR secure simple pairing, Proximity pairing and CSR Proximity connection Aoice Answering / Rejecting Calls TWS: Left and right channel separation Bluetooth versionV4.2 SupportA2DP 1.3, AVRCP 1.6, HFP 1.6, HSP 1.2 Receiver Sensitivity: 85dB at 0.1% BER Built-in Battery: 300MAH Charging Time: About 2 hours Bluetooth Distance: &gt;10M (open area) Charging Method: Micro USB 5V/0.5A Output Connection: 3.5MM stereo interface, dual output interface Complete Certificate: CE, ROHS, FCC, MSDS <span class="a-text-bold">NFC Function</span>: This Bluetooth Audio Adapter connection is simple, without any driver and download the cumbersome APP Compatible with Android, IOS system phones and PAD, and all Bluetooth audio devices Bluetooth wireless audio device,enjoy wireless music Built-in mic for hands free phone call,more safe in driving 1x B7 PLUS Bluetooth 4.2 Receiver and Transmitter 1x Micro USB power cable 1x User manual(English, German, Japanese three version) Share the fun with one transmitter that can pair with two Bluetooth headphones or speakers