Smart phone w71, wi-fi, 2.2" qvga wi-fi qwerty keyboard windows 6.1, quad band, dual sim single standby, java Smart phone w71, wi-fi * cpu: k3 chips 450mhz * wi-fi: 802.11b/g wireless internet, edge * operating system: windows mobile 6.1 * many office soft wares such as msn, excel, skype... * network: gsm850/gsm900/dcs1800/pcs1900 quad band cell phone * languages: english, chinese, spanish and etc. * touch screen gsm two sim card single standby * 2.2 inch touch screen * support windows mobile 6.1 professional * support wi-fi function (802.11b/g) * bluetooth/fm/mp3/mp4 supported Specification: Operating system: windows mobile 6.1 professional Quad-band: 850/900/1800/1900mhz Language: english, chinese Phone factor: bar type pda Size: 110x57x11mm Display size: 2.2"qvga 65k color tft lcd Bluetooth 2.0+edr: supported profiles Wi-fi: 802.11b/g Usb: usb 2.0 full speed, charging/pc sync/audio jack Battery capacity: 1100mah Memory: support tf card max up to 32gb Expansion memory slot: micro sd card Fm radio: support Speaker (numbers , hand free): speaker, support hand free Network led (color):red/green/blue Audio jack: on usb connector Windows mobile features: Outlook mobile Office mobile: word mobile/excel mobile/powerpoint mobile/onenote mobile Internet explorer mobile: microsoft internet explorer mobile edition Windows media player: windows media player mobile 10 Microsoft activesync Windows live messenger Windows live search Internet sharing Other added-on features Mms: oma mms 1.2 Wireless manager Contact manager Java function Input method Text input method handwriting/virtual software keypad Telephony related Voice call Data call: packet data Retail package, free accessories