Door Remote Control, Doors Controller Easy Learning Wide Compatibility for Home Specification: Item Type: Door Remote Control Number of Keys: 4 Colour: Mahogany Colour Distance: Approx. 30 ~ 100meter / 98.43 ~ 328.08ft meters in an open area. Battery Information: 1 x 23A12V battery delivered with battery. Product Size: Approx. 58 x 39 x 13mm / 2.28 x 1.54 x 0.51in How to Use: 1. Clear : Be sure to press the up button and down button the 2 buttons on the upper row of the remote control at the same time, see the remote control indicator light flashing quickly and continuously and let go of your hand, the clearing is successful. Note: The indicator light should keep flashing. Press any key on the remote control and the indicator light flashes off to indicate that the is cleared successfully. The clearing can be completed in about 2 or 3 seconds. If there is no remote control indicator and blinking continuously, it means that it's not pressed at the same time. You can try several more times to complete the clearing. 2. Duplication: One hand holds the usable remote control and the other hand holds the remote control you got. Use the head of remote control to face the waist of remote control the 2pcs remote control are held together. Press the door open button corresponding to the 2pcs remote control, and wait to see that the indicator light of the remote control you got keeps flashing, which means that the button is copied successfully. Follow the same method in turn to copy the other 3 keys. Note: If the light does not flash when copying, after pressing the keys on the 2pcs remote control, do not release both hands, and then hold the copy remote control and look for signals around your own remote control. You can change the position, such as head to head, back to back, when you see the light keep flashing, it means that the signal has been copied. After the remote control is copied successfully, press any key and the indicator light is always on. Package List: 1 x Door Remote Control Note: 1. Most of the flap doors are rolling chips HCS101, HCS201, HCS301, which are fixed remote controllers that cannot be learned. 2. The remote controllers all enables normal distance of general households, if individual users have short distances, it may be related to your receiver. Simple to Copy: Has wide compatibility with various fixed chip, such as 2240, 2260, 2262, 2264, 5211, and so on. Quick Learning: Both the clearing and copying are very easy and quick, which adds more convenience to daily use. Remote Control: Enables 30 meters to 100 meters remote control distance in open area, suitable for general household. Practical Uses: A great controller suits perfectly for a variety of rolling door, telescopic door, barrier gate, etc.