Fangrui Product Details 1. Type Of Programming: Programming With The Receiver 2. Number Of Channels: 4 3. Code: Rolling Code 4. Frequency: 433.92mhz 5. Woring Range: 10-50 M (open Space) Comaptible With: Cardin S449 Qz1 Cardin S449 Qz2 Cardin S449 Qz3 Cardin S449 Qz4 Txq449100 Txq449200 Txq449300 Txq449400 Remote Come With Battery !!! Security Of Use: Dynamic Code Provides A High Level Of Security, Non-copyable Code. Disclaimer:your Old Remote Must Be Same As The Advertisement, New Remote Do Not Compatible With Other Remotes. Programming Mitters To Receiver The Remote Control Is The Same Function As Your Old Remote. It Should Programming With For-original Receiver According To Your For-original Manual When You Get It. 1. Locate The Learn / Code Set Button On The Motor. This Is Usually Under The Lamp Cover, Or On The Back Of The Motor. 2. Press The Learn / Code Set Button Once, Then Let Go. A Light Should Illuminate. 3. Press The Desired Mitter Button Once, And The Light Will Go Out. 4. Press The Remote Again The The Light Wi