[Selectable modes & 2 types of EMS rhythms] The RELX head brush is equipped with three types: "EMS mode alone", "LED mode alone", and "EMS+LED mode". In addition, you can choose between two EMS rhythms and four output levels to choose from. The ultra-lightweight and round design makes it easy to follow the body, scalp, and face line, supporting a comfortable feel. It is designed to be easy to incorporate into your daily self-care routine. *The feeling of use varies from person to person. We do not guarantee the effect or experience of this product. [EMS mode operation method] (1) Press and hold the power button (about 3 seconds), one blue light will light up, and "Red LED" + "EMS Mode" will start from level 1. (2) Every time you press the EMS button, level 2 (2 blue lights on) → level 3 (3 blue lights on) → level 4 (4 blue lights on) → EMS mode (OFF)... It switches to . (3) Press and hold the power button (about 3 seconds) to turn off the power. *If you press the power button twice quickly while using EMS mode, all the blue lights will flash and the vibration rhythm of the EMS will change. *If you want to use it only in EMS mode, press the LED button 4 times to turn off the LED mode. [LED mode operation method] (1) When you press and hold the power button (about 3 seconds), one blue light will turn on, and "red LED" + "EMS mode" will start from level 1. (2) Every time you press the LED button, the blue LED → red blue LED (MIX) → red blue LED (MIX) flashing→ LED mode (OFF)... It switches to . (3) Press and hold the power button (about 3 seconds) to turn off the power. *If you want to use it only in LED mode, press the EMS button 4 times to turn off EMS mode. [Operating time and charging time] (Operating time) Approx. 2 hours (Charging time) Approx. 2.5 hours *When using an AC adapter of 5V⎓1A DC 【Precautions before use】The attachment is IPX4, but the main unit is not waterproof. Never wash with water. When using EMS mode, it may be difficult to feel electrical stimulation if your skin is dry. It is recommended to lightly moisten it with lotion or water before use. The way electrical stimulation is felt varies from person to person and varies depending on the area. For safety, be sure to adjust in stages starting with EMS level 1 when changing parts. 【Contents】Main unit, Type-C USB charging cord, Japanese instruction manual (with warranty card) *This product does not come with an AC adapter. *Please use the output value: 5V⎓1A equivalent. *Output value: If you use a device with more than 5V⎓1A and it breaks down, it will not be covered by the warranty even within the warranty period. *Please be sure to use the included charging cable when charging. [Body weight] about 115g