ERGO F MFSHL V1 transmitter is configured with eight (8) single detent highly reliable membrane switches on the front panel, one (1) Start/Horn, three (3) option single detent membrane switches on the sides and a three-position maintained toggle switch adjacent to an easy to access STOP switch. The transmitter features a status LED on the front panel and is powered with either three (3) AA batteries or one (1) Hetronic 3.6V NiMH rechargeable battery (optional).