Features: brand new and high quality Copy code matching operation: Press the single button of the copied remote control and the copy remote control at the same for time, until the copy remote control indicator light changes from fast flashing to steady light to indicate that the copy is successful, you can release the two remote control buttons. The other keys are also operated in sequence according to this method until all keys are copied. Code clearing operation: press and hold the A and B buttons of the copy remote control at the same for time until the indicator light flashes quickly, and then short press the A button three times to clear the code (the B button is kept pressed during this process). Recovery code operation: Press and hold the C and D buttons of the copy remote control at the same for time until the indicator light flashes quickly, you can recover the remote control code that was cleared before. The working voltage cannot exceed the working voltage range. It is forbidden to use it in a humid environment, otherwise it may cause damage to the remote control. Specifications: Material:Metal Size:Approx.6x4cm/2.36x1.57in Operating Frequency: 433 MHz Net Weight:30g Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Copy Remote Control