... wire/U disc/ Bluetooth (file transmission, remote control, stereo) Standby Photo: jpg, gif Main features Telephone directories: 250 groups, ... /calculator/unit converter/remit exchange/IP dialing PicturesOperating Frequency: GSM Network Frequency: 900/1800/1900MHZ SIZE(L×W×H): ... Style: Bar phone Standby time: 70-100h Key words:tri-band watch phone,camera,fm watch phone dual SIM card watch phone with MP4 ...