... -built-in lithium battery -volume control buttons - Bluetooth v2.1 Flower design Bluetooth wireless headset for iphone A, play, pause functions;B ... , personalized ears shell design free to change; C, a key to answer calls, dial ... , LAN access, Syn-chronization, Fax, PAN, BPP, OPP Power Supply: +3.3 VDC / +1.8 VDC Operating Current: <25mA Shutdown current:2 ...