Vibration: machines use vibration and stimulating tension to tighten the human skin, increase its own elasticity and increase skin metabolism. Warmth: heat massage promotes absorption, stretches the skin structure and makes the skin fuller. Neck lifting, skin tightening. Arched adhesion to neck and body line This massager generates heat to every inch of neck skin. Red LED light: it can penetrate deep into the bottom of the skin, wake up collagen activity, improve boredom and reduce wrinkles. Blue light LED photo: blue light: it can promote collagen synthesis, activate the skin, tighten loose skin, reduce pores and improve oily skin and muscle acne. Green Light LED Photon: Green light: It can improve the intermittent function of oxygen cell utilisation, promote blood circulation of the body surface, lymph nodes and oedema while also promoting the effect of soothing the skin, balance and soothing.