HTC S1 Windows 6.0 smart phone with GPS and WIFI Quad band Telephone directories: 100000 groups of contacts of carte de visit, unlimited phone book that can record more than 20 items Messages &Multimedia messaging: unlimited SMS/MMS Schedule power on/off: can realize auto flight mode with the third-party software Alarm clock: can realize MP3 with the third-party software, can set from Monday to Sunday at random Games: built-in PPC games, can download thousands of PPC 3D games, even can download game simulator to down. More information: MP3/MP4/Handsfree/SMS group sending/Voice recorder/WAP/Handwritten input/Bluetooth/GPRS download/Infrared interface/MMS/Smart phone/Memory extended/E-book/Coming call firewall/E-dictionary/super touch phone/ the latest windows 6.0 system/ built-in MSN/ QQ2007/ support word and PDF files editing......