Key Features 1.Patented BluGear mechanism for clipping anywhere 2.Earbud cradle for convenience 3.L/R ear wearable 4.Ease of use for Glasses wearers 5.Supports Voice Dialing 6.7 step Volume control 7.Last Number Redial 8.Call Reject 9.Switching charger for frequent travelers 10.Low Power Consumption Specifications 1.Bluetooth Specification v2.0 + EDR 2.Audible buzzer function (can be switched off) 3.Radio Frequency 2.4-2.4835 GHz Spectrum 4.Supports Headset & Handsfree Profiles 5.Operating Range Up to 10 meters 6.Bluetooth power class 2 (up to +4 dBm) 7.Receiver sensitivity -80 dBm @ 0.1% BER 8.Talk Time Up to 8 hours 9.Standby Time Up to 200 hours 10.120 mAH rechargeable Li-Polymer Battery 11.Switching Power Adaptor (100 ~ 240V) 12.Weighs 17 grams (body only) 13.Dimensions 39.5 mm(L) x 28mm(W) x 19mm(H) 14Certificates- CE