40mm yellow coated paper cone, 40mm full rnage neodymium speaker with 4ohm 3w rms.This is also a nice Full Range Speaker. widely applied in smart voice contrllor, Bluetooth Speaker,multimedia speaker and so on.
11-62 blower fan is designed to adapt the ever-developing of the air-conditioner, industrial purification and ventilation field, it has the advantages of high energy-efficient, variable speed and low noise