Keep your garage door opener conveniently clipped right to your sun visor for easy access with the Transmitter Solutions Stinger 310MCD21V Garage Door Opener Visor Remote. This slim Stinger garage door remote is compatible with Stanley garage door hardware, and it features just one simple button for basic home use. It contains a metal clip on the back to fasten it to the sun visor of any vehicle, and it comes in a black case with a green button that is easily visible, even in dim light. This compact remote makes a great replacement remote or second remote to use in addition to the larger version included with your Stanley garage door. New Part# 310MCD21V2 Alternate Part# SU7310MCD21V Black Case and Green Button Visor clip included 10-digit toggle code switch inside Contains one 12-volt A23 battery Measures .5" by 3" by 1 5/8" Weighs 1 oz. Operates at a 310 MHz frequency Test and operate LED Front cover slides to conceal battery Compatible to the Stanley Remote Model MCS105015