4 Button Mini Transmitter Features Four channel transmitter M3-2314 Works with all Marantec 315 MHz operators Mini style remote with clip Keychain loop, LED Compatible with operator models:M-4500, M-4700, Q-7500, Q-7700, Q-7900, M-Line, Q-Line Compatible remotes: M3-2312 and M3-3313 Replaces discontinued transmitters ML-1314 and ML-2314 Part Number: 65893