Equipped with a high temperature setting of about 42 degrees this beauty device for eye beauty treatments gives moisture to the eyes with gentle hot steam. You can choose your favorite warmth with 3 temperature settings. Equipped with a small fan plenty of steam fluctuates providing a continuous warm feeling & replenishing moisture to every corner of the eyes which tends to dry out. You can choose the combination of rhythm touch & steam according to the usage scene & the aroma holder means that you can enjoy the aroma while using it. Yes no battery no warranty