Easy to use: power the demagnetizer up, put the wrist watch above its 2~3cm place, press on the red button, turn the watch so that it can be demagnetized all round (5~10s is enough); normally, 1~3 times of demagnetization is enough; do not constantly demagnetize the watch; do not contact the watch to the demagnetizer; do not press on the red button for too long; improper use of the machine might damage your watch!