* Bluetooth version: Version 1.2
*Operating Distance: 10 Metres
* Weight: 11.5 grams without battery;
22.5 grams with battery
* Range of Frequency: 2.4GHz Spectrum
* Dimension: 72mm(L) X 24.5mm(W) X 16mm(H)
* Talk time: Up to 15 hours talk-time
* Standby time: Up to 700 hours
* Ear compatibility - Adjustable for both left and right ear.
* Compatible with：
1.Alkalescent battery of AAA (1.5V/900MAH)
2.Rechargeable battery of NI-MH (1.2V/900MAH)
* USB charger