Accessory Shelf

An accessory shelf for a portable wireless audio system is provided. The accessory shelf may serve as a charging cradle for the portable wireless audio system when in use, and may fold parallel to the wall when not in use. The accessory shelf interacts with the portable wireless audio system to enable audio equalization parameters of the portable wireless audio system to be adjusted automatically upon connection with the accessory shelf to account for the proximity between the portable wireless audio system and a wall adjacent the accessory shelf. One or more wireless communication functions may be incorporated in the accessory shelf to enhance the capabilities of the portable wireless audio system while engaged with the accessory shelf.