2016 mini stereo wireless microphone earbuds invisible  

1- Charging voltage: USB 5V
2-Working current: 10-20mA
3- Bluetooth Working range: 10M
4. 4.0(Headset/Hands-Free/A2DP Profiles)
5.Output power: 2x18mW
6.Frequency range: 2.401-2.480GHz
7. Distortion factor: ≤1%
8.Frequency response: 20Hz-20KHz
9.Working Time: Music state 3.5 H/ Talkingstate 3 H
10.SNR: S/N≥95
11.Charging Time: 1h
12.Bluetooth name: s530 or custom
13.Speaker: 16Ω20mW
14.Battery: 3.7V/40MAH (Polymer rechargeable battery)
ing environment -10~60℃
16.100PCS/CTN CTN/SIZE:32*13.5*22CM
17.G.W:5KG