12000mAh Dual USB Power Pack allows you to charge 2 devices at the same time. With 2 x USB charging ports you get the added convenience and flexibility of being able to charge multiple devices when needed. With a 12000mAh lithium-ion battery the Dual USB Power Pack supports charging a wide range of devices such as iPad iPhone iPod and micro-USB charged Smartphones or wireless Bluetooth headsets. Now you can talk longer listen to more music play more games watch more videos without worrying about running out of battery life - if you run low on power just plug in the Dual USB Power Pack and keep going. Fits easily in a travel bag or tote the perfect size for taking with you when travelling. As the Dual USB Power Pack is lightweight and well designed it is convenient to carry with you in case of the need for emergency power.