The information about the product is provided by the seller. Notwithstanding any of this information, the product is not intended for diagnosis, cure, mitigation, treatment or prevention of any disease, is not a drug or a medical device, and should not be used for any medical purposes. Please consult a medical specialist. Mode:7 Modes Rated Power:4W Battery Capacity:750mAh Charging Voltage:5V/1A Charging Time: About 3 Hours Instructions included: Yes Shelf life: 2 years Ingredients: ABS, Metal Using the Principle of Positive and Negative Ion Inter-Attraction, the Dirt in Deep Pores Is Discharged through Biological Current and Thoroughly Cleaned. Cosmetic Ingredients Penetrate into the Bottom Layer of Skin through Iontophoresis. Mechanical Vibration and Voltage Stimulation Are Adopted to Tighten Human Skin, Increase Elasticity and Enhance the Metabolism of Skin Cells. Warm Massage Promotes Absorption, Stretches Skin Texture, and Makes Skin Plump. Skin Tightening, Brighten Skin Color, Resist Wrinkles, Remove Wrinkles, Remove Face, Clean Detoxification.