New and top quality - the high frequency facial machine generates high-frequency current through glass electrode tube, stimulates to increase atp synthesis to amplify cell renewal, halt and ultimately reverse the aging process leading to firmer younger skin. with 4 in 1 multi function you can choose the different electrodes to treat your skin problem. large mushroom for large facial areas, small mushroom for smaller area,small glass head for spot areas,and comb accelerate the blood circulation of the head. safty and protable - high frequency vibration of the machine accelerate the blood circulation to improve your skin conditions. treatment area 1.mushroom electrode treatment on broader area such as cheeks, forehead, neck and jawine. 2.bend electrode for small targeted areas such as nose and around the ears.