- Caller' s Name andNumber Indentification ( Supports Multiple Languages) - Whoe phonebook sync in one touch -advanced buit-in microphone and speaker -Echo cancellation and noise suppression - fulll duplex sound quality - Support voice dial/ redial/ call rejection -Solar power board support batter power - Bluetooth Specification: V2.0 - Support Profiles: Headset & Handsfree 1.5 - Working Distance: Up to 10 meters ( Class 2) - Talk time: up to 11~ 13 hours - Standby time: up to 450 hours - Speaker: Peak power 2w - Dimensions: 92.5 x 54 x 15.5 mm - Weight: 90g