1. Item Name: Mini Bluetooth Earphone
2 Bluetooth Version: V4.0+EDR
3. Impedance: 32
4. Sensitivity: -42 dB
5. Frequency range: 20 - 20K Hz
6. Transmission power: Class 2
7. Transmission range: 10m
8 Radio frequency: 2.402 - 2.480G Hz
9. Color: White, Black, Pink, Blue, Skin Color
10. Music time: 2-3h
11 Talk time: 2 - 4 h
12 Standby time: 120 hours
13 Charging time: about 2 hours
14 Battery type: 50 mA rechargeable polymer battery
15 Output power: 30mW
16 Power system: AC110-220V/DC5V
17 USB Cable Length: about 5cm
18 Size: about 16*15*28mm/0.63*0.59*1.10inch
Note
1>Only for right ear, left ear is also available but not comfortable.
2> only as MONO,not as stereo even if you have 2 or more in your hands.
