This product adopts curve, the appearance is generous and beautiful;the internal circuit design is scientific, adopts chip components, the sound meter resonator stabilizes the frequency, has the characteristics of high stability, low power consumption, etc.Model: AB038Type: 4-button wireless remote controlRated voltage: DC12 VRated current: less than equal 12mAChip: ECA compatible chipButton: A B C DInstallation method: handheldFrequency: 433MHZColour:blackMaterial:ABSPackage Contents:4x ControllerOnly the above package content, other products are not included.Note: Light 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.