Remote control duplicator Product material: ABS Installation: wireless For: Such as electric telescopic door remote control, road gate remote control, alarm remote control and so on. Wireless transmission distance: 50-150 (m). (open space) Note Clone most of remote control in the market,If you are not sure about compatibility. Please contact us.It can copy a lot of the brand. Package Include1pc Note: You can ask the customer service staff for the product manual. In addition, this product needs to use another accessory to assist the operation. That is to say, it must be paired with the wireless receiver controller before it can be used. Wireless receiver controller needs to be purchased separately.