Bluetooth V2.0 Compliant;
* Adopting CSR Bluetooth solutions;
* Radio Characteristics: Bluetooth TX Power Class II
* Frequency: 2.402 GHz - 2.480GHz
* Channels: 79
* The longest standby time: 200 hours;
* The longest talk time: 6 hours;
* Rechargeable Li-polymer battery;
* Working Range : Indoor 5 metres, Outdoor 10 metres;
* Simple Touch Call Reject, Call Waiting, Voice dialing.
* Adjustable volume control key;
* Blue/Red LED indication for bluetooth access and power on/off;
* Well suited to both the right ear and the left ear;
* Light and balanced weight design offers wearing comfort;
* Keep user away from electromagnetic wave of mobile phone; 

After Sale Service : 2 years warranty