- Bluetooth technical parameters and product features
1. Drive: 40 mm
2. Impedance: 32 OHM
3. Bluetooth version: Bluetooth v4.0+EDR
4. Power Level: CLASS II
5. Output power: 30mW
6. Bluetooth distance: accessibility 10 meters
7. Frequency response: 20-20000Hz
8. Operating voltage range: 3.0V-4.2V
9. Mic sensitivity: -42dB
10. High-quality stereo audio transmission and remote control protocol with A2DP/AVRCP
11. Powerful noise cancellation circuit (active noise reduction)
12. Chinese and English switching
13. Charging time is about 1 hour (power indication charge: red light, full charge: off.)
14. Product size: diameter 20MM. 15MM wide. 18mm high