Cautions: Bar codes in the emitter and receiver must be consistent. The indicator light on the emitter must be working. The receiver cable must be properly connected, and the buzzer must beep once when powered on. Ensure battery contact is normal and power is sufficient for remote control. Replace batteries when depleted. Remove the battery when the device is not in use for an extended period. Wire the device according to parameters listed on the labels to prevent shortened lifespan or malfunction. The antenna must not be connected to other wires. If there is a code switch on the fan, set the fan to the highest speed before using the remote control. The receiver emits a beep when the remote is pressed. Ensure sufficient space in the fan canopy or install the receiver accordingly. Specifications: 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. Do not overload. Remote Control Battery: 2 AAA batteries required (not included) Color: White + Black Material: Plastic Package Contents: 1 x Controller 1 x Remote Control 1 x Wall Mount Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.