Durable 8000 mAh power bank for a great promotional campaign. Supports 5W wireless charging and comes with one USB ports to also allow charging by cable. When fully charged it will provide you with enough energy to re-charge your mobile phone up to 3-4x times. The power bank contains a long-lasting grade A 8000 mAh high-density lithium polymer battery. The power indicators will indicate the remaining energy level so you always know when tore-charge.