2-in-1 Car Bluetooth Receiver Audio Power Amplifier Bluetooth Transmitter 1. Receiving (RX) signal and transmitting (TX) signal can be switched freely in one, suitable for a variety of devices 2. The car audio can be converted into a Bluetooth audio in seconds, and you can listen to mobile music all the way. Built-in microphone, hands-free loudspeaker and clear calls, it is safer to drive without taking your hands off the steering wheel 3. Connect the old-fashioned stereo, break the space limitation, enjoy the convenience of wireless stereo amplification playback, and the sound effect is more shocking 4. Equipped with a high-performance Bluetooth 5.0 conversion chip, the signal transmission is more stable and quickly rejects delays and freezes 5. Compatible with mainstream systems, no need to install drivers. Smart chips are used to ensure stable signal and fast operation. 6. In a non-interference environment, it can achieve 10 meters long-distance transmission, and the connection is stable and smooth 7. Support high-definition audio decoding, reduce the sound loss and bottom noise of wireless transmission, clear quality, no noise, restore sound details, and enjoy beautiful music 8. The status of the redblue indicator light is clear at a glance 9. The emission mode is suitable for computers, TV sets, projectors 10. The receiving mode is suitable for speakers, earphones, car machines, and calls 11. Product packaging: host, 3.5mm audio cable, manual 12. Input voltage: DC 5V 13. Size: 20.5x10.8x43mm 14. Gross weight: 27g