Suitable for 2PCS Garage Gate Remote Control for Alutech AT-4 AR-1-500 AN-Motors AT-4 ASG1000 AT4 AT 433MHz Rolling Code Installation: Wireless Frequency: 433.92MHz Code: Rolling code Battery: 12V 27A Radio transmission distance: 30-100m (Open area) Scope of application: Garage door, alarm, automatic door, rolling door, etc. Compatible Model: 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 should be programmed with the old receiver according to the original manual. Color: Black + Silver Material: ABS Package Contents: 2 x Remote Control Note: Only the above package content is included; other products are not included. Light and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3cm. Please pay attention to the title and description when purchasing.