Brand from South Korea: vanav. Size: 64 x 104 x 21mmBattery: AAA AlkalineBenefits:A beauty device with micro vibration that improves facial contour, skin tone, and reduces the appearance of fine lines, wrinkles.Using Chinese's traditional 'Gua Sha' treatment to enhance facial line, neck wrinkle and décolleté line.The titanium-made massager head is safe for sensitive skin.Compact design, available in 4 colors.Triple Ion Mode to smoothen the skin texture and helps penetrate the active ingredients into the skin effectively.Guide for each mode:(+) mode: Helps penetrate skin nourishing and hydrating ingredients into the skin.(-) mode: Helps penetrate Vitamin C or whitening products into the skin.(±) mode: (±)Ion improves skin elasticity and increases the penetration of lifting or anti-aging cosmetic ingredients.How to use:(+) mode - Basic Skincare:1. Apply a moderate amount of moisturizing, nourishing skincare products on the face.2. Press the button (+) mode.3. Gently glide the massage head along the