Item:earphone for iphone
1. Drive: 15mm
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 Bluetoot state, press the switch 2 times, hear the tone switch successfully)
15. Product size: diameter 8cm long. 8cm wide. High 4cm
16. Product net weight of about 5g with packaging 65g. A box of 100pcs, outer box size 7.5kg 42x42x22.5
17. Talk time is about 4-5 hours
18 music time about 4-5 hours
19. Standby time is about 120 hours
20. Charging time is about 60 minutes
21. Battery capacity 60MAH
22. Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger)
23. Compatible phone: compatible with Andrews, Apple, Microsoft, Saipan system with 99% of the Bluetoot phone
Pictures for you reference