Check the listing for details. Chamberlain Garage Door Opener Remote Control Transmitter Part Red Learn Button. Condition: New. Listed at 11.97 USD. Liftmaster Chamberlain Garage Door Opener Remote Control Transmitter Part Red Button Security + 390mhz Compatible with Liftmaster 91LM, 92LM, 96LM,970LM ,972LM, 973LM and 974LMChamberlain 950CB, 953CB, 956CBSears 139.53681, 139.53680Compatible with Security+ systems with Amber learn button, including Chamberlain, Sears, Craftsman and Raynor code rolling residential openers (Safety Signal)Replaces transmitter model G971AC for Access Master garage door openers.Also compatible with wireless keypad model number 976LM (same as model 940CB, 139.53684)Compatible with Liftmaster garage door opener model numbers 1240R, 1245R, 1246R, 1255R, 1256R, 1265, 1280R, 1000SDR, 2000SDR, 1245 GMR, 1255GMR, 985, 2265, 2565, 1280R, 2280, 2580, 2220, 2110, ATS211R, 2500Compatible with Chamberlain garage door opener model numbers 1200, 2200, 4200, 6200, 7220, CG40, CG40, PD210, PD610, PD612K, 7320, 8200, 9200, 4620, 4640, 9902, PD420, PD460-2, 9950Compatible with Security+ garage opener receiver model numbers 335LM, 535LM, 412HM, 635LM 390 MHZ Frequency, over 100 billion codes with code rotating technology (Security+)1 channel/button transmitter, compatible with models manufactured from 1997-2005Visor clip and Lithium battery (5 years life w/normal use) included Features Chamberlain Sears LiftMaster Craftsman 971LM 972LM 973LM 970LM Transmitter 3 Button 390 Mhz Security Plus System for use with Orange or Red Learn Button. Visor Style Remote with clip and battery