Curve Power Bank is a portable emergency charger for your mobile phone or tablet that can recharge from a USB port. Power Bank contains a 4400mah Lithium Ion battery A grade cells which is enough capacity to recharge most phones on the market with 1 charging cycle and current model IPad or Tablet 40% approx. Gift boxed with 3 in 1 connector to use with most current mobile devices on the market. Can be charged up to 300 times. Takes 4-5 hours to charge.