1. Installation: wireless 2. Frequency: 433.92MHz 3. Code: Rolling code 4. Battery: 12V 27A 5. Radio transmission distance: 30-100m (Open area) 6. Scope of application: garage door, alarm, automatic door, rolling door, etc. 7. Compatible Model: for Alutech AT-4 AN-Motors AT-4 Alutech AnMotors ASG1000 Alutech AnMotors AR-1-500 Alutech AT-4 600 8. 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 your old manual when you use it. 9. Color: Black + silver 10. Material: ABS 11. Package Contents: 2 x Remote Control 12. Only the above package content, other products are not included. 13. Note: Light 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.