Welcome to our store! 1. 390MHZ frequency, compatible with operators manufactured between 1997-2005. 2. Smart coding button with green LED, easy to use, convenient to operate. 3. 1-channel transmitter, compatible with \"Billion Code\" series. 4. Also compatible with wireless keypad model numbers for Chamberlain 950CB, 953CB, 956CB. 5. Lightweight and compact design, easy to carry and store. Item Type: Garage Door Opener Material: ABS Color: As the picture shows GDO Learning Button Color Compatibility (Learning Button Color): Orange/Red Code Type Compatibility: Security+390MHz Compatible Model: For Liftmaster 971LM 390MHz with Orange/Red Learning Button 1997-2005 Replacement Remote Compatible with the following part numbers: For Chamberlain: 950CB, 953CB, 956CB, or Keyless Entry 940CB For Liftmaster: 970LM, 971LM, 972LM, 973LM, 974LM, or Keyless Entry 976LM For Sears/Craftsman: 139.53681 or 139.53680 1 x Key 1 x Buckle Satisfaction Guarantee: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory customer service.