Features 1 USB port with 1.8A output , Prongs retract into item when not in use , Power bank On/Off switch , Output: USB 5V/1.8A, Comes with a micro USB to regular USB cable. UL certified Li-lon battery . Complies with Prop 65, UL, UN38.3. 2.875" L x 2.125" W x 1.125" H. Price includes a 1 Colour Imprint. Imprint area is 2.0" W x 1.375" H on Side. Call for multi-colour or multi-location imprints or for rush delivery availability.