Features: OOTDTY Advantages: long management high confidentiality, secure performance, low power consumption. High sensitivity: Wireless indicators can struggle through walls, floors, doors or-windows with out being blocked convenient: You can use the transmitter to expose the receiver on/off within the remote control distance. Easy to use: wireless control, tender to install, immediately replace preceding or broken. This product can management lights, motor, fans, cameras, video signals, audio-signals, electrical doors / locks / window. This board is universal. The floor fan, shaking fan and table fan would be converted right into a handheld remote control fan although it became a fan without handheld remote control before. The amendment is simple, for example, the mechanical fan has four black wires connected-to the common-terminal, and the remaining 3 wires can be managed through connecting the high, center and occasional grades respectively. The amendment is simple! It has the functions of sound asleep air and self-heating air timing. Specifications: Material: Plastics Size:Approx/4" Main Board Size: Approx/3" Type: Red English/Red Vietnamese Board/Red Chinese and English Voltages:110-275v Package Includes: 1 Set Circuit Board Note: Please enable 1-2cm errors due to handbook measurement,Please just make sure to don't intellect earlier than you order. Due to the variation between different monitors, the picture may not replicate the actual coloration of the item.