The remote control adopts the learning EV1527 encoding method. Each remote control has an independent address code to prevent cross-coding and mutual interference. The receiving module adopts key selection mode. There is no need to manually select the mode through welding, jumper wires, etc., saving time and labor costs. The receiving module contains a decoding chip that supports EV1527, PT2262 and other encoding chips. Color: As Shown Material: PCB Package Contents: 4*receiving module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.