【Customizable Comfort】Featuring 9 adjustable settings and an ergonomic oval handle, this sleep aid device ensures ultimate comfort and control for your optimal sleep experience. 【Enhanced Focus and Productivity】Boost your learning outcomes and overall performance with this handheld sleep assistant, maintaining alertness and concentration for improved work efficiency. 【Portable Design】Say goodbye to sleepless nights with this compact sleep device that fits comfortably in your hand and doesn't take up valuable luggage space. 【Perfect Gift】Ideal for birthdays, holidays, or any occasion, this sleep device symbolizes your care and affection for friends and loved ones. 【Versatile Usage】Whether you seek deep relaxation or a more invigorating experience, this device caters to your needs, helping you wake up refreshed and ready to tackle the day. Specifications: Product size: 4*6cm Input voltage: DC5V Working power: 0.3W Working current: 0.003A Material: ABS Battery capacity: 300mAh Charging mode: USB charging Charging time: about 3 hours