Stereo Bluetooth Headset (BTK-21)

1) Compliance with Bluetooth 2.0 with A2DP, AVRCP, HFP and HSP
2) Frequency range: 2.402 ~ 2.480GHz
3) Transmission output power: 0.25 ~ 2.5mW
4) Maximum cordless distance: 30 feet (10 meters)
5) Dimension of headset: 28pie x 16.4
6) Weight of headset: 20g
7) Relative humidity: 0 ~ 95%
8) Typical standby time: 180 hours
9) Typical talk time: 15 hours
10) Typical play time: 10 hours
11) Battery type rechargeable poly battery
12) Charger rated input: AC 100 ~ 240V, 50 / 60Hz
13) Charger rated output: DC 4.2V, 400mAh