Eye Massager,Heated Eye Mask Massager with Vision Window and Vibrate , Relax and Reduce Eye Strain Dark Circles Eye Bags Dry Eye， Improve Sleep Smart Eye Massager used Two Silicone Airbags in Contact with the Left and Right Eye Surfaces. Through High-frequency Motor Vibration and Hot Compress with a Heating Film,It can Relax Eye Muscles,Alleviate Eye Fatigue ,and Promote Bloood Circulation. Functional characteristics: 1. Product Name: Smart Eye massager 2. Rated Voltage: DC3.7V 3. Rated Power: 4.0W 4. Charging Voltage：DC5.0V 5. Battery Capacity：1000mAh 6. Smart Time：15 minutes 7. 4 Modes : Vitality,Soothing,Eye-care,Sleep Mode *Note：this Product is not a substitute for medical devices 1. High Frequency Vibration 2. Cordless with View Window 3. 180°Foldable 4. Small&Portable 5. Air kneading 6. Constant Hot Compress 7. 3 Levels of Intensity (High-Mid-Low) 8. Small and Portable 9. Adjustable Strap for Diffrerent People