1. Battery capacity: 120mAh
2. Usage time: about 10h
3. Sensitivity: -42dB
4. Charging interface: Type-C/USB-C
5. Bluetooth version: 5.3
6. Transmission distance: about 10m
7. Signal to noise ratio: greater than 90dB
8. Frequency response: 20Hz-20KHz
9. Output power range: 33mW RL = 16 ohms
10. Audio transmission mode: a2dp\avctp\avdtp\avrcp\hfp
11. Frequency range: 2400-2483.5MHz
12. Size: about 8.75 x 1.4cm

Features:
1. Widely compatible, plug and play, audio devices with AUX input interface can be used
2. Mobile phone connected to the car stereo, the music in the phone can listen to, support navigation broadcast, safe travel
3. Built-in microphone, hands-free amplification, clear calls, safer driving
4. Power on automatically back to connect, easy to use
5. Connect audio / headphones, wired to wireless
6. Bluetooth 5.3, low power consumption, high speed, stable transmission
7. Built-in high-performance decoding module, with Bluetooth 5.3 lossless transmission, high-definition sound quality, stereo sound effect
8. Built-in digital noise reduction chip, improve voice sensitivity