This clever powerbank from Desire2 is a powerful design which features a 4000mAh lithium polymer battery for fast and efficient charging. Automatic device detection begins charging immediately via the built-in micro-USB cable whilst LED indicator lights keep you fully informed as to the charging status. With StaySafe technology which prevents any over-heating, high currents or voltage surges, this powerbank will keep your smart devices safe and sound. All this, and this powerbank boasts a compact and lightweight design which is perfectly portable - simply pop it in your bag or pocket for quick charging on-the-go. Specifications Integrated micro-USB charging cable LED indicator lights display charge status Portable design Fast charging 4000mAh lithium polymer battery Advanced safety protection: StaySafe Technology Warranty: 3 years Dimensions: H13.8 x W0.8 x D6.7cm Colour: Black