The Cloud Nine Scalp Head Massager Emits Red Led Light And Features Soft Rotating Heads, Vibration, And An Electrical Component, Please Read The Following Safety Precautions And Instructions Before Use, the Red Led Light Emitted By The Massager May Cause Discomfort Or Eye Strain In Individuals With Light Sensitivity, If You Experience Discomfort Or Eye Strain, Discontinue Use Immediately And Consult With A Healthcare Provider, </li><li>avoid Using The Massager For Extended Periods Of Time, As This May Cause Hair Breakage Or Hair Loss, do Not Use The Massager On Broken Or Irritated Skin, As This May Cause Further Irritation Or Injury, consult With A Doctor Before Use If You Have Any Medical Conditions, Such As A Scalp Condition Or A Pacemaker, That May Be Affected By The Massager, use The Massager As Directed And Only With The Included Power Cord And Charger, follow Safety And Instructions In The Instructions And Perform A Light Test Prior To Using, Do Not Use The Massager For More Than 5-10 Minutes And Repeated Lift Off The Scalp To Avoid Hair Entanglement, keep The Massager Away From Water Or Other Liquids, As This May Cause Electrical Shock Or Damage To The Device, keep The Massager Away From Children And Pets,do Not Attempt To Disassemble Or Repair The Massager Yourself, As This May Cause Damage To The Device Or Result In Injury