Features: Sleep Aid Device: Helps individuals with sleep difficulties, migraines, anxiety, or stress fall asleep faster. Compact design with powerful performance to support daily deep sleep. Working Principle: Utilizes microcurrent technology to stimulate neurotransmitters in the cerebral cortex, helping regulate mood, calm the mind, relax the body, and promote sleep. 2 Operation Modes: Low-frequency relaxation mode to assist with insomnia, and high-frequency mode to enhance focus. Switch modes with the power button; adjust intensity using +/– buttons. Compact and Portable: Lightweight design with a silicone anti-slip strap for easy wrist carry. Suitable for use at home, in the office, or during travel. Ideal Gift Choice: Use during the day to improve concentration and productivity; use at night to reduce anxiety and stress, and support better sleep. A thoughtful gift for family, friends, and colleagues. Specifications: Input Voltage: DC 5V/1A Working Power: 0.5W Battery Capacity: 500mAh Usage Time: Automatic shutdown after 20 minutes; approximately 50 uses per full charge Charging Time: 1.5 hours Charging Interface: Micro USB Material: ABS + Stainless Steel Color: Gray, Orange, Blue (Available options) Item Size: 70*32*25mm / 2.75*1.26*0.98in Item Weight: 44g / 1.55oz Package Size: 120*78*58mm / 4.72*3.07*2.28in Package Weight: 144g / 5.08oz Package Contents: 1 x Sleep Aid Device 1 x Charging Cable 1 x User Manual (English/Chinese)