D11 Car Bluetooth 6.0 Audio Adapter NFC Bluetooth Receiver 1. Transform your vintage amplifier into a Bluetooth speaker effortlessly connect for wireless music playback, giving your old amplifier a new lease on life 2. Receiver mode: captures Bluetooth signals and transmits them to wired audio devices 3. USB drive playback: compatible with all brands and models of USB drives, plug and play without Bluetooth. 4. Bluetooth 6.0 chip: ensures stable and fast connections for high quality music streaming 5. 10-meter unobstructed transmission with stable, lag-free signal 6. NFC-enabled device support for one-touch auto-pairing 7. Versatile connectivity: RCA, AUX, and USB playback options. High-definition seamless integration in one step 8. Hi-Fi audio architecture delivers clear, transparent, and pure listening experience Specifications 1. Connection: NFC touch-to-connect 2. Bluetooth version: 6.0 3. Transmission range: 10m 4. Power port: Type-C 5. Input power: DC 5V 6. Featuresports: AUX input, RCA redwhite ports, USB drive playback, NFC phone connection 7. Size: about 7.7 x 4.6 x 1.8cm