Cautions: When the new device cannot be remote controlled, check whether the bar codes in emitter and receiver are consistent, whether the indicator light on the emitter is working, whether the cable of receiver is connected properly, and whether the buzzer beeps once when power is on. When the receiver cannot be controlled by the emitter, check whether the battery contact is normal and whether the power is sufficient. Replace the battery promptly when it is out of power. Insensitive remote control may be caused by interfering environment or low battery. Remove the battery when the device is not used for a long time. Wire properly in strict accordance with parameters on labels. Otherwise, it may shorten the life of the device or cause malfunction. The antenna must not be connected with other wires. If there is a code switch on the fan, turn the fan to the highest speed before remote controlling. The receiver beeps when you press the remote button. Ensure there is enough space in the canopy of the fan or place the receiver accordingly. Operating Voltage: AC 90-220V Working Frequency: 50-60Hz Remote Control Distance: More than 20 meters Support Encoding: 1527 learning code Operating Mode: 1527 remote control Loading Power: Ceiling Fan: Max. 300W Incandescent Lamp: Max. 1000W LED / Energy saving lamp: Max. 200W LED light / energy saving lamp: Max. 200W Do not overload. Remote control battery: 2 AAA batteries required (Not included) Type: 220V/110V Color: White + Black Material: Plastic Package Contents: 1 × Controller 1 × Remote control 1 × Wall seat Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the actual product. Measurement allowed error is +/- 1-3 cm.