The Dime Earbuds can be used with any standard audio device. They feature a retractable cord, a 3.5mm audio jack and a 30 inch earbuds cable. Complies with Prop 65. 0.375" H x 1.125" W x 1.125" L. Imprint Area is 0.63" H x 0.75" L on 1 color only . Please call for rush delivery availability or for multi-colour, multi-location imprints.