Description:Precautions:1. Select the remote control of the prerequisite: the original remote control function is normal, remote control chip is the same or compatible, remote control operating frequency the same.2. The remote control can only copy the fixed code, learn the code chip and part of the single-chip remote control (can copy the chip model see copyable chip type).3. Two-way remote control, rolling code remote control, single-chip encryption program remote control cannot be copied. Such as HCS200, HCS201, HCS300, HCS301 and so on.4. Before copying the remote control, make sure that the existing code on the remote control has been cleared and check that the code is cleared successfully. Otherwise, it cannot be copied.5. Please ensure that your remote control has enough power, the distance between the two remote control the better! If the copy distance is too close to the switch at different angles to copy. Press and hold the button on the original remote control to send the signal completely normal, and then press the button on the remote control to ensure that the function is completely copied.Specifications:Type: Wireless remote.For: Such as electric telescopic door remote control, road gate remote control, alarm remote control and so on.Rated voltage: 3V CR2016 Battery(included).Wireless transmission distance: 50-150 (m). (open space)Package Included:Remote Control *1