Cautions: When the receiver can't be controller by emitter, please checking to see whether the battery contact normally and whether the Power is enough, Please replace battery in time when it is out of power. Insensitive remote controlling probably because of interfering environment and the low battery. When the new device can't be remote controlled, Please check to see 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. Please remove battery when it isn't in used for a long time. Please wiring properly in accordance with parameters on labels. Otherwise it directly shorten life of this device or cause malfunction immediately. The antenna mustn't connect with other wires. When these is a code switch on fan, please turn the fan to the highest gear before remote controlling. The receiver beeps when you click the remote. It might bother some people. Please make sure there are enough space in the canopy of the fan or the receiver has to be fit beside., Weight: 0.44312914662 pounds, Manufacturer: puhae