This is a brand new Multi Code model 3083 two button keychain radio transmitter by Linear model MCS808301.
Works with all Multi Code type garage door or gate openers that have 10 code switch's operating on 300Mhz. Controls up to two door/gates. This is a brand new item that comes from dealer bulk purchase pack. This means that it is wrapped in a plastic bag (no box). Comes with velcro strip, battery (installed) and programming instructions.
Activates up to two Multi Code receivers
Velcro strip for visor or dashboard mounting supplied
Power: 12V battery (included)
Frequency: 300 MHz
Codes: Two sets of 1,024 (set by dip switches)
Dimensions: 2.5 x 1.5 x 0.625 inches