Specifications:

1. Driver: 15 mm
2. Impedance: 32 OHM
3. Bluetooth version: Bluetooth v4.1 + EDR
4. Bluetooth use band: 2.4GHz
5. Power level: CLASS II
6. Output power: 30mW
7. Bluetooth distance: 10 meters barrier
8. Frequency response: 20-20000Hz
9. Operating voltage range: 3.0V-4.2V
10. Mitou sensitivity: -42dB
11. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol
12. Powerful noise de-noising circuit (active noise reduction)
13. Switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully)
14. Charging time about 1 hour (power indicator charging: red light, full power: red light off (blue light).)
15. Product Size: Length 25 mm. Width 15 mm. High 35 mm
16. Talk time is about 4-5 hours
17. Music time about 4-5 hours
18. Standby time is about 120 hours
19. The charging time is about 60 minutes
20. Battery capacity 60 MAH

Package include:

2 x i7 TWS wireless independent bluetooth headset (1 Pair)
1 x USB charging cable
1 x User manual