Features:
1) Frequency: 2.4GHz-2.4835GHz ISM spectrum
2) Profiles: headset and handsfree
3) Output power class: class 2
4) Piconet: point to point
5) Security: pairing, encryption, and authentication
6) Battery: rechargeable lithium polymer
7) Battery voltage: 3.7V DC 120mAh
8) DC power input: 5.0V DC 100~240V AC adapter
9) Power consumption:
a) Talking 30mA@3.3V DC
b) Standby 1.8mA@3.3V DC
c) Off 0.15mA@3.3V DC
10) Talk time: up to 4 hours
11) Standby time: up to 200hours
12) Nominal charging time: within 2 hours
13) Dimensions: 64(L) x 24(W) x 15(H) mm