#The single-chip microprocessor is used to control the operation and display of the whole machine, which is highly intelligent and easy to operate and use #With LED display, the data is clearly visible and the operation is more convenient #The frequency amplitude is adjustable and the duty cycle is continuously adjustable #Made of high quality ABS material, it is durable and has a long service life #Both FM knobs have maximum and minimum direction adjustments that can be adjusted to suit your needs