Rechargeable Sleep Aid Device Hand Held Insomnia Massager Sleepping Care Handheld sleep aids are perfect for people who have a stressful life, have trouble falling asleep, and need to beat jet lag. Features: Using electric wave therapy, stimulate the cerebral cortex through micro-current, regulate emotions, help you easily and quickly fall asleep, and get better quality sleep. ?Pure physical sleep aid technology, no chemical substances and no side effects, and regular use will not cause adverse effects on the body. The appearance is exquisite, the shape is mini, and the ergonomic design is suitable for holding it for a long time without getting tired. Adjust the gear with one key, 0-15 gears can be adjusted, you can freely choose the mode that makes you feel most comfortable. Sleep-aid mode (use with left hand): reduce blood pressure, relieve emotions, and help fall asleep Invigorating mode (right-handed use): Concentrate and improve work efficiency Use for 7-10 days to relax your body and mind and ease your emotions Use for more than 15-20 days to reduce insomnia and fall asleep faster Specifications: Material: ABS Built-in battery: 300mah Power: DC5V=1.5w Voltage: 0.3A Current: 0.009A Charging mode/time: USB charging/about 3h Product Size :9.6x11x4.5CM Package Contents: 1x sleep aid 1x charging cable 1x anti-lost rope 1x instruction manual