Manufacturer: YAMAN Model Number: EPE-10BB Warranty: None Included Accessories: Silicone mask (washable), EMS controller (left and right), charger Purchased from the official website. Charging and operation confirmed. The left side feels warmth and a tingling sensation, but the right side feels warmth but the tingling sensation is less noticeable. I'm not sure if I'm not applying it correctly, or if the theory that "it's effective even without the tingling sensation" is true... Therefore, I'm selling it as junk. Area of use: Eyes Features: EMS