Allstar MVP 535T 27-Door Transmitter
Can control 27 garage doors with the open, close, and stop buttons.
Has a 1-9 switch and ABC switch to select the garage door.
Uses 8 trinary DIP switches, but is compatible with MVP Quick-Code receivers.
3-5/8" X 6-5/8" X 2-3/8"
One 9V battery included.
For use with openers operating at 318MHz.