Liftmaster 971LM 390Mhz Garage Door Remote Description Directional visor clip included: 3V lithium battery included features security+ rolling code technology compatible with liftmaster 390MHz security+ garage door openers and radio controls with a reddish orange learn button on the motor head. Features: 390 MHz LiftMaster 971 LM transmitter is compatible with orange or red learn codes Operating range: 100ft- authentic liftmaster product- OEM Operates on a 3 volt lithium battery Frequency of operation: rotating Transmitter: 1 - button, 390 MHz frequency & code rotating technology (security+) Product Details: Brand: CHAMBERLAIN Compatible Devices: Liftmaster Material: Polycarbonate Product Dimensions: 4"L x 2"W Special Feature: For use with 390 MHz Security+® garage door openers and light controls that have an orange learn button. The code between the remote control and the receiver changes with each use, randomly accessing over a billion new codes See more Finish Type: Matte Water Resistance Level: Not Water Resistant Unit Count: 1 Remote Screen Size: 100 Inches Model Name: 971LM Manufacturer: ‎LiftMaster Part Number: ‎971LM Item Weight: ‎2.08 ounces Product Dimensions: ‎4 x 2 x 0.05 inches Item model number: ‎971LM Batteries: ‎1 CR123A batteries required. (included) Is Discontinued By Manufacturer: ‎No Size: ‎1-(Pack) Color: ‎Black Finish: ‎Matte Material: ‎Polycarbonate Power Source: ‎battery-powered Voltage: ‎3 Volts Item Package Quantity: ‎1 Special Features: ‎For use with 390 MHz Security+® garage door openers and light controls that have an orange learn button. The code between the remote control and the receiver changes with each use, randomly accessing over a billion new codes Included Components: ‎Liftmaster 971LM 390Mhz Garage Door Remote Batteries Included?: ‎Yes Batteries Required?: ‎Yes Battery Cell Type: ‎Lithium Description Pile: ‎Lithium Average Battery Life: ‎5 years Date First Available: April 22, 2004