V2 Wirelss Bluetooth Earphone Free-hand Portable Stereo Sound Headset Sweatproof  Earbuds With Noise Cancelling And Mic

Description:
1. Drive: 15mm
2. Impedance: 32 OHM
3. Bluetooth version: Bluetooth v4.1 + EDR
4. Bluetooth usage frequency: 2.4 GHz
5. Power level: CLASS II
6. Output power: 30mW
7. Bluetooth distance: 10 meters free of obstacles
8. Frequency response: 20-20000hz
9. Operating voltage range: 3.0 v-4.2 V
10. Microphone sensitivity: -42db
11. Equipped with A2DP/AVRCP high quality stereo audio transmission and remote control protocol
12. Powerful noise cancelling circuit (active noise reduction)
13. Switching between Chinese and English (starting with no bluetooth connection, 2 times, and listening to the prompt)
14. Charging time about 1 hour (power indicator charge: red light is light, full of electricity: red light goes out (blue light).
17. The call time: about 4 - 5 hours
18 music time: about 4 - 5 hours
19. standby time : about 120 hours
20. charging time : about 60 minutes
21. Battery capacity: 60MAH
22. Charging power supply: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger)
Compatible mobile phones: compatible with android, iphone, Microsoft, and symbian, 99% of the phones with bluetooth feature phones

Package including:

1*earphone+1*retailbox+1*manual+1*cable