Features: 1. This sleep aid uses CES therapy (Cranial Electrotherapy Stimulation) to scientifically guide sleep and effectively improve anxiety, post-traumatic stress disorder and insomnia by gently stimulating the brain. 2. Pure physical sleep aid, no drugs, no pain, no side effects, regular use will not have any adverse effects on the body. 3. Three modes: comfort mode, stimulation mode, and enhancement mode; 9 adjustable gears to meet the actual needs of different people and help you improve your sleep quality. 4. Built-in 1000mAh high-quality lithium battery, which can be used for 30 minutes a day and has a battery life of up to 14 days without frequent charging. 5. It is very suitable for people who are stressed, prone to anxiety and depression, and have difficulty falling asleep. 6. This ear clip-type sleep aid is easy to use, just clip the ear clips to your ears; it is comfortable to use, stable and will not fall off. 7. Equipped with a portable storage bag, the compact and lightweight sleep aid is easy for you to carry when traveling, allowing you to fall asleep easily anytime and anywhere. Instructions: 1. Connect the other end of the earphone electrode cable to the sleep device host. 2. Install the washer on the ear clip electrode piece. 3. Use saline to moisten the gasket. (Note: This product is shipped without a salt water bottle. Customers need to make their own salt water to help conduct electricity) 4. Clip the ear clips on both ears respectively. (regardless of left and right) 5. Press and hold the power button to start the sleep device. 6. In screen-off mode, press any key to wake up the screen. 7. If there is no operation for a long time, the machine will automatically shut down after 10 minutes. Product Parameters: Material: ABS+PC Input voltage: DC5V/1A Ratd power: 1.5W Working current: 0.2A-0.5A Pulse gear: 9-level adjustment Charging time: 5H Duration of use: 20-60 times Battery capacity: 1000mAh polymer 3.7V Timing:15/20/30/45mins Charging port:Type-CProduct size: 13.5*6.4*1cm Package Included 1*Sleep instrument host