i12 TWS Wireless Bluetooth Earphones Stereo Earbud For Iphone Android  

Specification:

1. Driver: 15mm

2. Impedance: 32 OHM

3. Bluetooth version: Bluetooth Upgraded to 5.0+ EDR

4. Bluetooth use band: 2.4GHz

5. Power level: CLASS II

6. Output power: 30mW

7. Bluetooth distance: 15 meters barrier

8. Frequency response: 20-20000Hz

9. Operating voltage range: 3.0V-4.2V

10. Mic sensitivity: -42dB

11. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol

12. Powerful noise denoising circuit (active noise reduction)  switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully)

13. Talk time is about 2-3 hours

14. music time about 1.5-2 hours

15. Standby time is about 100 hours