Uses radio frequency wireless technology. Automatic power-saving sleep function prolongs battery life. Hidden compartment for storing USB connector. Plug and play technology. 1.188" H x 2" W x 3.312" L. Imprint area is 0.50" H x 0.88" L and includes a 1 Colour Imprint on 1 Location. Packaging: Individually Gift Boxed.. Please call for rush delivery availability or multi-colour/multi-location imprints.