Charging 4 cell phones at a time. The 4 USB socket make the people easy to get charged in the public place.
Very good for the School, dormitory. The total current is 3A. You can charge the ipad, cell phone. Camera, PSP, MID, GPRS and other 5V specification electronics.
Home or Public place.Such as school, hospital, Metro/Airport/Bus station, hotel, restaurant.