... format: MP4, 3GP - Music Formats: MP3, WAV, WMAOther features: - WiFi: Yes (b/g) - Bluetooth: YesLanguages: English, Spanish, Indonesian, Malaysian, German, French, Portuguese ... version will void the cellphone's warranty.To charge the phone watch, connect the end of the strap with the USB ... extension cable, then use the USB charging adapter. watch phone Android OS with WIFI, GPS, G-sensor Z1