MARANTEC Garage Door Opener M13-631 Wireless Keyless Entry 315MHz Compatible remote controls M3-2312, M3-2314, and M3-3313. Includes spacer kit for mounting onto metal surfaces, mounting screws, batteries, and programming instructions. Replaces discontinued model ML-631 and 89172. Compatible with opener models M-4500, M-4700, Q7500, Q-7700, Q-7900, M-LINE, Q-LINE. Works with all Marantec 315MHz garage door openers. Abiltiy to control up to three 315MHz garage door openers.