Specifications Encoding method:Fixed code Hign-concerned Chemical:None Origin:Mainland China Specification 1. Channels: 2 2. Weight: 16g 3. Frequency: 433.92MHz 4. Battery: CR2016 Include Battery 5. Size: 32 x 68 x 13mm 6. Range: 50m - 150m Instructions 1. If your original remote control works fine, you can clone your original remote control face to face with our remote control. 2. If your original remote control is lost, you can use our remote control and your receiver to program, its programming method is the same as your original remote control (please refer to your original remote control programming manual). This is a cloned remote control, and its usage is different from the original remote control. Please follow our instructions How to Program - it's easy! Face to face copy your original remote control Step:1:Clear the history code from duplicator 1:Press button A and B continuously until LED flash 3 times 2.Release button B (Keep pressing button A),and press button B Slowly for 3 times,LED flash 3.Release button "A",finish code clearance. Step 2,Copy code from original transmitter 1. Put duplicator aside of original transmitter,as close as possible. 2. Press and hold button A of original transmitter,then press and hold button A of duplicator until you see the duplicator's LED flash 3. Release both buttons,finish code copy,copy other button in same way. Button A = Lock button Button B = Unlock button Compatible Models TOP 432NA TOP 432EE TOP 432EV