Hign-concerned Chemical:None Model Number:Garage Remote Control Compatible:TOP 432EV How to Clone?Back-to-back copy your original remote control Step 1:Clear the history code from duplicator Press buttons A and B simultaneously until the LED flashes 3 times Release button B (Keep pressing button A),and press button B Slowly for 3 times,LED flash,Release button "A", code clearance. ,Copy code from original transmitter ,1: Place the duplicate remote control and the original remote control back to back, as close as possible. 2: Press and hold the A button of the original transmitter, then press and hold the A button of the copier see the copier's LED flashing 3: Release the two buttons to complete the code copy, and copy other buttons in the same way. Colour:black Material:ABS Package Contents: 1 * Garage Remote Control Only the above package content, other products are not included. Note: Light reflection 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.