Feature: 1. 30 Minutes of decompression to help sleep, intelligent timing function can automatic shutdown after sleep. 2. The use of low strength micro‑current stimulation of the brain, improve the patient's brain abnormal, help fast asleep. 3. Hand brain with same frequency, restore neurotransmitters, make people feel relaxed and help sleep. 4. To improve the effect of sleep disorders caused by increased brain excitability and actively regulate the rhythm of sleep and wake. 5. 3 Gears intelligent mode adjustment, with light prompt, day and night dual use, applicable to any occasion, comfortable and portable use. Specification: Item Type: Sleep Aid Machine Material: ABS Built-In Battery: Lithium battery 280mAh Power: 0.2 W Charging Time: 2-2.5h Single Mode Time: 30 minutes, can be used every day. After 30 minutes, three modes indicator will be flash for 3S at the same time and then shutdown Usage: 1. Place the electrode toward the center of the palm, touch the palm of the hand and hold the sleep machine 2. Wear a lanyard to prevent it from falling off. You can hold it or not 3. Long press the power button to start, short press to select the desired mode, and select the strength of "+/-" according to your own needs. Package List: 1 x Sleep Machine 1 x USB Cable 1 x Manual