Pentair MobileTouch® II 520906 Wireless Accessory Kit with Transceiver for IntelliTouch® Systems and IntelliTouch® Interface. Average range of 500' Installation is simple and requires no high voltage wiring. Powered by a rechargeable lithium-ion battery. Includes an AC per DC adapter for recharging. Water resistant, wireless user interface control panel with high-resolution 3-3 per 4 Inch monochrome backlit LCD.