The wireless receiver of the URX-P03 can be attached to camcorders or interchangeable-lens cameras that have an MI (Multi-Interface) shoe using the MI shoe adapter SMAD-P3. the eliminates the need for connecting cables. By using the MI shoe adapter, audio signals can be transmitted from the wireless receiver to a camera. In addition, the wireless receiver can get power from the camera and the camera can control power ON/OFF, unifying power management.