Seip Midi Remote Control Handset AS4 KeyfobThis model is a 40. 685MHz midi sized keyfob handset that was supplied with Seip garage door openers prior to the introduction of the 433RC handset in 1999. It provides, despite being smaller, a compatible replacement for the obsolete SE40TX handset. This 4 red button midi remote NOW REPLACES the 40 AM handset. Compatible with Seip A45 & A60 later models, M50, C75 & C100 later models. Supplied with battery.