How to use effective 1.Low frequency fits 12 minutes once a day,2-3 times, o it's with power for a long time of feels sleepy, then you'll feel tired. 2.It can avoid 30 minutes after meals, after shower or warm water after cleaning and support Care in use: 1.turn off the power after use. 2.Please separate the rubber pads from the machine. Please attach. 3.ge l pad. (drying, prevent pads, must be pasteboard hold sticky) 4. Dirty point, etc... should be washed by a dam cloth, neutral cleaning material, and the through dry cloth wipe. 5: Do not keep the sun, hot temperatures and humidity, damp and dusty place, fire or shake or so. 6. Ensure that children can not touch. 7.Do not touch the dry battery terminal with wet hand. 8.If you don't use it for a long time. (over 1 months) please remove the battery from the battery the machine is removed and stored in other place.