ADAPTO 646 charger is BIS approved an ultimate stamp of safety and reliability you need for your expensive and valuable devices. You can simplify things with the sleek, pocket-sized and lightweight USB wall adapters from Portronics that can plug into any Indian mains and charge your USB devices. Sophisticated circuit design with overheated, over-current, over-charging protection will automatically stop charging when battery is full. With 100-240V, 50-60 Hz AC Input Voltage, these USB wall adapters can work as a travel chargers as these automatically adjusts to all voltages and frequencies in this range.