Karbonn K77 is a dual-SIM handset with 3.5 inch QVGA capacitive touch display. The 1.3MP camera of the handset captures images and records videos for you. The phones has 1000 mAh battery that gives you a talk time of 4 hours. For connectivity, it has GPRS, BLuetooth, and USB. Other features are WAP, Hindi & English language support, and 8GB expandable memory.