Marantec M3-2312 (315 Mhz) 2-button Set of 3 in Package Marantec remote control For 315 MHz frequency Marantec operators Transmitter includes clip, battery and belt clip. LED control button verification. Can control up to 2 Marantec garage door openers Works on Marantec M4500, M4700, Q7500 and Q7900 that run on a 315MHz frequency.