Features: 1.The product adopts a simple oval design with a new matte texture, which conforms to the design of people39;s hand grip, simple and comfortable. 2.Button design, one button to turn on, adjust the power supply. Fall asleep easily every day 3.USB is convenient for charging, it can be connected to the computer's USB port, mobile power, power supply and other charging methods, and the battery life is long. 4.Using this product can stimulate the neurotransmitter of the cerebral cortex through micro-current to regulate emotions, thereby promoting sleep. 5.Best gift choice for your family/friends. Instructions: Point 1: Switch to sleep aid mode relax or exciting mode active at the bottom. Point 2: The protrusion of the electrode faces the palm of the hand, and the palm touches the periphery of the protrusion electrode to form a micro-current loop. Point 3: Turn on the side knob and gradually adjust to the gear that you are comfortable with. Notice: ①Actual color may be slightly different from the image due to different monitor and light effect ②Please allow 1-3cm deviation due to manual measurement Description: Power supply mode: USB Function: Timing Control method: mechanical Working principle: micro current Package List: 1X Microcurrent Sleep Helper 1X USB Cable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.