Color:3 Buttons Description: 433MHz 1/2/3/4 channel wireless remote control perfect for the control of garage door, gate doors and other equipment. Specifications: Condition: 100% Brand New Material: Plastic + Metal Color: As Picture Shown Encode: EV1527 Frequency: 433MHz Channel: (optional) Type: 1 Button, 2 Buttons, 3 Buttons, 4 Buttons(Optional) Remote Control Distance: 0~100m Power Supply: Button Battery (included) Size: As Picture Shown Package Weight: Approx. 40g 【Easy Operate】100% brand new and high quality wireless remote control.This is a fixed frequency remote control with EV1527 code, 433Mhz simple pairing.  【100 Meters Long Range】Build in button battery for long service time. Maximum control distance up to 100 meters in the open air. 【Security System】Perfect for the control of garage door, gate doors and other equipment.  Description of product use effect 【Use with remote control switch receiver】 It is just an ordinary radio frequency remote control/transmitter, only used with the remote control switch receiver. It can be used with the receiver module produced by our company for better effect! 【Receiving Module】 On the right, it is a receiving module with decoding, eliminating the trouble of programming and decoding, output D0, D1, D2, D3, four high and low level signals, you can add a drive circuit to control the device. Can be connected to MC