Multi-color light drifts from one color to the next, On/off switch for light, Features two USB ports with 2.1A output, Prongs retract into item when not in use. Complies with ETL, Prop 65. 2.25" L x 2.4375" W x 1.875" H. Price includes a 1 Colour Imprint. Imprint area is 1.8125" W x 0.125" H on Top Around On-Off Button. Call for multi-colour or multi-location imprints or for rush delivery availability.