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: for Alutech AT-4 AN-Motors AT-4 Alutech AnMotors ASG1000 Alutech AnMotors AR-1-500 Alutech AT-4 ASG 600 Programming transmitters to receiver The remote control is the same function as your old remote.it should programming with old receiver according to your old Manual when you get it. color:Black + silver Material:ABS Package Contents: 2 x Remote Control Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.