General description This multifunctional EMS Face Massager Roller is a 2-in-1 lifting device designed to help reduce double chin and care for your skin. It features two massage functions: a 3D metal roller massage and the introduction of EMS microcurrent, making it suitable for various skin types. Technical specifications Voltage: 3.7V Charging time: approximately 3 hours Usage time: approximately 2-3 hours Rated power: 5W Charging power supply: 5.0V-1A Color: Pink Material: Plastic + Metal Measurement allowed error: +/- 1-3cm Usage This massager has three modes: radiofrequency mode, EMS microcurrent mode, and combined radiofrequency + EMS microcurrent mode. It stimulates muscle movement, helps lift fine lines, and improves blood flow. The 3D roller massager features 8 balls and a 360° rotating design, utilizing new kneading technology to relieve sensitive skin and promote blood circulation. Ergonomically designed for use on the neck, arms, and calves to achieve a thinner figure.