Specifications:T-shaped head:2.7×2.7×12.2cm;O-shaped head:1.5×1.5×12.2cm;Rolling massage head:1.2×1.2×12.2cm;Rated voltage:1.5VDC;Rated power :0.5W; 1×AAA battery (not included) Product Features:Massage,lift and tighten the skin and makes the skin ounger by high frequency micro vibration of about 5000 times per min.Suitable for multiple parts of the body.3 replaceable heads:T-shaped head for reaching any delicate parts of the body and lifting,tightening the skin,as well as shapping the face more like V shape,O-shaped head having more comfortable finger-massage touch for fitting the surrounding of the eye and for daily repair and maintenance of wrinkles,flabby and rough skin,rolling massage head for simulating rubbing and pinching by rolling up and down to lift and relalx the skin .Mini size and portable.