2 pcs Garage Gate Remote Control for Alutech AT-4 AR-1-500 AN-Motors AT-4 ASG1000 AT4 AT 433MHz Roll Installation: Wireless Frequency: 433.92 MHz Code: Rolling code Battery: 12V 27A Radio transmission distance: 30-100 m (open area) Scope of application: Garage door, alarm, automatic door, rolling door, etc. Compatible models: Alutech AT-4, AN-Motors AT-4, Alutech AnMotors ASG1000, Alutech AnMotors AR-1-500, Alutech AT-4 600 Programming transmitters to receiver: The remote control has the same function as your old remote. It must be programmed with the existing receiver according to the original manual. Color: Black + Silver Material: ABS Package contents: 2 x Remote Control Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.