Universal Compatibility: This 371lm garage door opener remote is compatible with Yellow, Purple, Green, Red/Orange learning buttons for Liftmaster/Chamberlain/Craftsman garage door openers since 1993. Not compatible with dip switches. The remote is compatible with Liftmaster 371LM and Chamberlain 950ESTD models. Please check the color of your garage door opener learning button before ordering. Wide Adaptability: This 371lm remote works with garage door openers featuring a Yellow learning button (Safety+2.0), Purple learning button (315MHz), Red/Orange learning button (390MHz), or Green learning button (390MHz Billion Code). It can replace models 370LM, 371LM, 372LM, 373LM, 374LM, 891LM, 950CD, 953D, 139.53753, 41A6127-1, 971LM, 972LM, 973LM, 974LM, 970LM, 139.53681, 139.53680, 81LM, 893LM, 139.18191, 139.18192, 139.53752, 139.53753, 139.53754, HBW2028, and 53681. High Practicality: The 371LM garage door opener remote operates one garage door opener and door operator. When programming, ensure the garage door is closed. For best results, remain close to the garage door opener during programming to ensure successful setup. High Security: This universal garage door opener remote uses Security+ 2.0 rolling code technology, generating a new code each time for enhanced security. Three buttons allow control of up to three separate garage doors. Color may vary slightly between production batches, which does not affect functionality. Color: As shown in photo Material: Plastic Package Contents: 2 x Garage door opener remotes Note: Light reflection and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.