Manual of Fan Remote Controller This unit is mainly for fan and its lighting function, but the ionizer is an additional function. This product has an FCC ID certificate. Adopted frequency:304Milz. Please turn off the power first, then refer to the manual for installation instruction. 1.Setting up the remote The wireless control is designed to operate both the light and speed of the fan. The remote uses a 9V battery. Remove the remote’s back cover and insert the battery.