Fangrui Product Details And Easy To Install. Fine Workmanship And Style. Specification: Buttons: 4 Buttons Frequency: 868mhz Distance: 30m-150m(opener Area) Battery: Include Battery Type Of Programming: Face-to-face Clone Compatibility Model: For Hs1-868 For Hs2-868 For Hs4-868 For Hse2-868 For Hsz1-868 For Hsz2-868 For Hsp4-868 For Hsm2-868 For Hsm4-868 For Hsp4-c-868 For Hsd2-a-868 For Hsd2-c-868 It Is Only Compatible With The For 868mhz Blue Button. How To Program - It Is Very Easy! Face To Face Copy Your Remote Control Step 1. Clear The History Code From Duplicator 1. Button A And B Continuously Until Led Flash 3 Times 2. Release Button B (keep Pressing Button A), And Button B Slowly For 3 Times, Led Flash 3. Release Button A, Finish Code Clearance. .copy Code From Transmitter 1. Put Duplicator Of Transmitter, As Close As Possible. 2. And Hold Button A Of Transmitter, Then And Hold Button A Of Duplicator See The Duplicator Is Led Flash 3. Release Both Buttons, Finish Code Copy, Copy Other Button In Same Way. But