This wireless charger is equipped with a built in Bluetooth speaker. Press the on/off button to listen to music and/or charge your phone for up to 4 hours using the micro USB port. Includes non-slip pads on the bottom with your choice of colored grip around the center. The wireless charging pad is compatible with QI-enabled devices only. Imprint your company name and logo on the top using a full color process epoxy dome. Quantity ordered must be in increments of 25 pcs per color.