B21 Bluetooth 5.0 Audio Receiver AUX RCA Output U-disk Playback Type-DisplayPort Series Built-in microphone: monitoring range 20M

Built-in microphone: monitoring range 20M

improved image quality

stable and anti-interference

Material OCA

B21 Bluetooth 5.0 Audio Receiver AUX RCA Output U-disk Playback Type-DisplayPort Series Built-in microphone: monitoring range 20M1. Product model: B21 2. Supported devices: Two mobile phones can be connected 3. Output interface: 3. 5mm stereo RCA left and right sound channel 4. Function description: U disk, hands free call, 5. Bluetooth protocol: AVRCP, A2DP 6. Frequency range: 2400 2483. 5MHz 7. Frequency response: 20Hz 20khz 8 output power: 28mW RL=16 9. SNR: >90dB 10. Total harmonic distortion: <0. 1% 11. Supports SBC and AAC 12. Forward transmission distance: 10 meters 13.