The Color Pop Earbuds can be used with any standard audio device. The set includes three interchangeable soft rubber earbud covers, a plastic case with cable storage, a standard 3.5mm audio jack and a 38 inch earbud cable. Complies with Prop 65. 0.75" H x 2.75" W x 2.75" L. Imprint Area is 1.50" H x 1.50" L on 1 color only . Please call for rush delivery availability or for multi-colour, multi-location imprints.