1 button Remote Operates 1 door. LED indicator & 3V cell battery. Visor Clip. Compatible with RADIORE900, RE900A, RE900B, RE901, RE901A, RE901B. For Any Commercial Operator with Manaras Exterior Receiver. Electronic DIP switch technology. Connection range up to 100’. Old and new generation radios mix and match. Compatible with most commercial operator brands, and with Manaras Board070 and prior, or hardwired control. Radio RE900 fits most commercial operator brands on the market. 900 series Dip-Switch transmitters/Receivers are not compatible with Rolling Code Technology, Series 100. Cannot be paired with on-board Radio Receivers