PROLINK PQC1003 is a wireless surface charging pad that enables you to charge your phone or tablet without the need for cables. It has an output power of 5/7.5/10W (max) and is compatible with Qi-enabled devices. Installation is simple and requires drilling a hole (85-87mm diameter) through your desk surface, then positioning the pad into the hole and securing it using the two screws provided. The adjustable Screw Fixture design allows you to fully secure the Wireless Surface Charging Pad to your desired piece of furniture and with your choice of surface height ranging from 16mm to 40mm.