Ergonomic design eye mask with massage function. - Brand: NIPLUX - Function: With massage function - Operation buttons: Power, mode switch, intensity adjustment - Material: Suede-like interior - Design: Ergonomic design - Charging method: USB-typeB Thank you for viewing. This is a used item that has been stored at home, so please refrain from purchasing if you are sensitive to such things. Instant purchase is OK. We have thoroughly checked the operation. We do not accept returns or refunds after the product arrives, from the perspective of preventing product substitution. If you have any questions, please feel free to ask in the comments section.