Specifications Hign-concerned Chemical:None Wireless Communication:RF Use:TV,Air Conditioner,Computer,Universal,Projectors,Audio / Video Players,Camera / Video Camera,Speaker,Lighting,Electric Door,Automated curtains,Switch Origin:Mainland China Feature: Easy to use, the 4 channel remote control system lets you take control of your gadgets, car, home and garage. This is not a complete list! If your remote uses the 433MHZ frequency it will work with the remote duplicator (note: rolling code remotes will not work). IC model of original remote control is 2262 2260 1527 2240 and compatible IC. The battery used in the product is 27A 12V please replace the battery when the remote control distance is insufficient. Clone up to 4 remote signals from 4 different remotes. Descriptions: With this remote control, you can control all 433MHz fixed code key fobs. Some remotes that use this frequency are listed below. 4-Channel RF Wireless Remote Control Duplicator for Cars, Garage Doors, Gate Doors, Alarm Systems etc. This is a fixed frequency remote cloner (433mhz) for copying common fixed and learning code remote controls. Specifications: Package Weight:19.8g Size: 95mm x 6mm x 15mm Color:black Operating frequency: 433MHz Powered by 27A 12V battery (included) Channel: 4 Distance: 50-100 meters Application: Duplicate Your Existing Remote Controllers Application example 1: Vehicle central locking systems Application example 2: Garage doors access control system Application example 3: Electronic gates access control system Application example 4: Electrical appliances control Application example 5: Car sunroofs control Application example 6: Heating systems control Application example 7: Light Switch Package included: 1 x Remote Control (include 12V 27A battery) Copying method: 1. When you press A and B at the same time, the LED indicator will be steady for 1 second and then blink 2. If the code clearing is successful, it means that all key stored data has been cleared. If the operation is not completed, you can repeat the above operation to clear it once 3, after the completion of the clear code, press any key will flash. Press the key without data is a flash. Press the key with data is a LED indicator light is steady on to send data Note: The original remote control can not perform code clearing operation! Copying: place the product correctly before copying. Place the original remote control and copying remote control on the desk. Use right hand to press the copying remote control until LED is on - off, indicating it enters to copying status. Use left hand to press the key of original remote control. The fast clicking of LED of remote control indicates success in copying. The copying method is the same as for several keys. NOTE: This product can copy the remote control with the following chip inside: PT2264, PT2262, PT2260, PT2240, SC2262, SC2260, EV1527, SCT527, HS1527, HS2240, SCL1527, FP1527. If you fail in copying with proper operation, you might have to check whether your device has a chip above. If IC chips can not match, it will not be copied, please verify the chip model before you buy.