The Panasonic Gold Hot Roller Limited is a roller beauty device that operates on AA batteries. - Brand: Panasonic - Model Name: Hot Roller Limited - Color: Gold - Power Source: AA batteries - Features: Roller type Thank you for viewing. This is a used item. There is one stain? Insert an AA battery, press the button, and gently apply it to your eyes. The moderate warmth soothes eye fatigue. Liver fatigue can manifest in the eyes. How about using the warmth to help recover your eyes and liver fatigue? To prevent battery leakage, the batteries will be removed before shipping. We will use home packaging. Thank you for your understanding.