3.7 V

Feature: Comfortable Eye Massage with Remote Heating - Renpho's electric eye massager built-in heating padsProvide a comfortable temperature between (40℃-42℃), better for relaxing eye puffiness, dry eyes, etc.A hot compress can regulate the metabolism of the eyes, such as dry eyes, and reduce dark circles.Eye massager with music & 15 timer off，you will be totally relaxed and enjoy a better sweet dream.Renpho eye care machine also can effectively help you be refreshed after long-day work or study.180° Adjustable & Portable Design - can be folded into a smaller one, so you can take it to the office, airplane, travelingEye massager with adjustable headband can be easily adjusted in size and suitable for all teenagers and adults.Bluetooth Customizable Music - Built-in speakers and prerecorded sound enhance relaxation.Music reduces your anxiety and the physical effects of stress, you definitely deserve it.Every Renpho's massager uses a well-built package & a good unboxing experience. Specification: Brand:RENPHOColor: BlackAssembled Product Dimensions (L x W x H):7.87 x 5.51 x 4.33 Inches