Features:100% brand new and high qualityThe remote control adopts the learning type EV1527 coding method, and each remote control has an independent address code to prevent stringing codes and mutual interference. Fireproof ABS material is safer and more fashionable. No wiring is required, it can be placed anywhere in the room, and a 3M powerful sticker is presented, which 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. Package Includes: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 Panel Specifications:Material: Plastic ShellReceiver Size: Approx. 42x82x26mm/1.64x3.19x1.01inchSwitch Size: Approx. 86x86mm/3.38x3.38inchRemote Control Distance: 30mLoad Power: 800wInput Voltage: AC85~250VRemote Control Frequency: 433mhzType: 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 Switch Panel note:1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.