Q81C Light Wireless Switch & Receiver Kit Self-powered Switch Smart Bulb ReceiverOOTDTYechs: 100% Brand New & High QualityThe remote control adopts EV1527 type coding method, and each remote control has an independent address code to prevent tension codes and mutual interference. Fireproof ABS material is safer and more fashionable. No wiring is required, can be placed anywhere in the room, and a powerful sticker is presented that can be pasted on the wall. The remote control uses a 433MHz wireless RF chip, which can penetrate the wall, and the signal can penetrate the wall and be recognized by the receiver. (This model does not have WIFI mode)Using the WL117S chip, the remote control is more sensitive and has a longer distance. Specification: Material: Plastic Shell Receiver Size: Approx. 42x82x2 6mm/1.64x3.19x1.01inchChange Size: Approx. 86x8 6mm/3.38x3.38inchRemote Control Distance: le; 30mLoad Power: le; 800w Input Voltage: AC85 - 250VCould Remote Control Frequency: 433mhz Type: One-Button Switch Panel + Controller/Two-Button Switch Panel + 2 Controllers/Three Button Switch Panel + 3 Controllers/One-Button Switch Panel/Two-Button Switch Panel/Three-Button Panel Switch PackagePackage Included: 1x One-Button Switch Panel + 1x Controller/1x Two-Button Switch Panel + 2x Controllers/1x Three-button switch panel + 3x controllers/1x One-button switch panel/1x two-button switch panel/1x three-button switch panelNote: 1. Please allow 1-2cm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.