Detailed Description  Network GSM/GPRS 900/1800/ 1900 Tri-bandVedio play time under projector modeVedio play time under projector mode More than 2 hour (Battery)Resolution of projector640×480 VGA size for referencesize : 115.6X23.3X48.6 mmarea/distance for projectoras TV screen of 34-64. 1-2m focus can be adjustedExternal Video Interface CVBS, support VGA Interface through a conversion line, able to connect wih PCExternal Audio Interfaceleft&right channel Line In. External audio input can be played with the phone's audio broadcast systemTouch Screensupported, Four-resistive, 2.4 inchsupported, Four-resistiveLCD Mode/ Phone Projection Display(PPD) Mode / Projector Mode. Switch by key or software settingPPD Modeprojector module is on, LCD screen off, content in mobile phone is displayed by projector module. External audio interface is not available.Projector Modeprojector module is on and display content put in by External Video Interface. Content in mobile phone is displayed by LCDN70 is a mobile phone that supports Projector. It has a built-in projector module to project the content in mobile phone to a large area besides ordinary mobile functions, and also has External Video Interface, can be used as portable projector.