Portronics TORK 78 is the one of the Lightest, Smallest and Most Efficient 7800mAh USB Power Bank in the Market. TORK 78 that can charge ALL of your USB chargeable Mobile phones, Tablets, MP3 Players, digital cameras. TORK 78 has Dual Output Charging ports with a sliding & shutter and One Input USB port, TORK 78 is perfect for using on long outdoor travels. It has dual USB outputs of 2.3A and 1.5A & and an 1.8 A fast charging input port which fully charges TORK 78 in less than 6 hours.