YAMAN facial massager with electrical stimulation function, includes charger. - Brand: YAMAN - Model Number: EPM-18BB - Accessories: Charger - Model Name: Facial Massager - Function: Electrical Stimulation - Color: Black - Power Supply: DC5V Please understand the following points before use: ● Part of the mask's chin area is torn. ● The stimulation on the right side is slightly weaker than on the left side. Thank you for your understanding.