Karbonn K 661 is Dual Standby SIM (GSM + GSM), 2G Network Support, Call Features -Conference Call, Speed Dialing, One Touch Music Player, One Touch Camera, Predictive text, Calculator, Alarm clock, Stop Watch, World Times, To Do List, Voice recorder, Unit Convertor, Currency converter, Health Management, Image Format - JPG, BMP, GIF, PC Sync, Built-in data or fax Modem, CLID with Photo. For further details please visit http://www.karbonnmobiles.com. Posted id (globaljob21@gmail.com)Read less