Marantec M3-2312 Garage Door Opener Remote Set of 2 Works withW all Marantec garage door opener units Marantec garage door opener 2-button digital remote control For 315 MHz. Works on Marantec M4500, M4700, Q7500 and Q7900 that run on a 315MHz frequency. Unique, multi-bit technology. Can control up to 2 Marantec garage door openers