Power up any device in a matter of an an hour with the Rocka Surge power bank, with the 8 built in high capacity Lithium ion batteries you can power up your tablet or smart phone when they are low. With an astounding 20,800 mAh capacity, it is the ideal for traveling or anywhere you don't have access to an power. It also features 4 USB ports, allowing you to charge four devices at a time, smartphones and tablets, simultaneously – and with that kind of capacity, you can charge your devices many times over. Features: - Light-weight and durable aluminium and PVC outer casing - Metalic sand-blasted for a premium blemish-resistant finish - 8 High capacity Lithium ion batteries allowing you to charge your devices many times over - 4 USB out ports - Built flash light - Display screen showing power percentage Specifications: - Capacity : 20800 mAh - Input : DC 5 V / 2 A - Output : DC 5 V What's in the box 1 x Powerbank