... in GPS ModuleBattery: 7.4V/3800mAhWork time: 3-4 hoursTouch Screen: single point resistanceAudio format: mp3, wav, ac3, aac,ogg ... JEPG, PNG, GIF, BMPCamera: 2.1 Mega PixelMaterial of back cover: PlasticMIC: Built-inSpeaker: 2 speakerG-sensor: YesWith StylusInput: 100 ... jack*1, DC jack*1, Ethernet jack*1Material of back cover: PlasticOther applications: Contacts, Calendar, YouTube, Camera, Gmail, Voice ...