Portable led gua sha face & neck massage \ \ led massage device for tightening the face & neck \ \ \ \ 3 anti-aging & tightening functions \ \ 3 phototherapy intensity levels \ \ indications \ \ clean: deep pore cleansing & strengthening lymphatic circulation \ \ ems: enhancing cell activity, absorption of active ingredients & smoothing fine wrinkles. \ \ hot (thermal massage function): enhancing blood microcirculation in the skin, tightening & elasticity of the skin on the face & neck \ \ \ \ instructions for use \ \ press the start button for about 1 second to start and press the start button again to enter the ems mode. \ \ on a clean face, apply the facial serum to the skin \ \ use the device with appropriate movements, from the chin to the cheek, from the cheek to the temples, from the base of the neck to the chin and from the eyebrows to the top of the forehead. always make sure that the head of the device is in good contact with the skin. \