Feature: 1. Simple oval design, new matte texture, in line with human hand grip design, simple and comfortable. 2. Round button design, one key to turn on, adjust power. Easy to fall asleep every day. 3. USB convenient charging, can be connected to a computer USB port, power bank, power supply, etc., long endurance. 4. It can stimulate neurotransmitters in the cerebral cortex through microcurrents, regulate emotions, and promote sleep. 5. When using this product, properly stimulate the hands, so that the hands and brain will be at the same frequency to calm the anxiety. 6. Light weight and in small size, easy to carry when going out. Suitable for patients with insomnia and anxiety. Specification: Condition: Brand New Item Type: Holding Sleep Instrument Material: ABS Mode: Sleep Aid / Inspiration Power Supply Mode: USB Charging Battery Capacity: 500mAh Input Voltage: DC 5V/1A Working Power: 0.5w Endurance Time: 20 Hours Suggested Use Time: 15 Minutes How to Use: To put the front of the product completely in your hand: Press the power button is the low-frequency decompression mode, which is recommended for left hand. Pressing the power button again is the high-frequency encouragement mode, which is recommended for the right hand. Adjust power with +/- keys on both sides Long press the power button to shut down.. Package List: 1 x Host1 x Manual1 x USB Cable Note: 1. It is forbidden to use with implanted medical appliances, such as pacemakers, which may cause equipment failure or trigger danger.2. Do not use this product if the palm has skin problems such as wounds, eczema, blisters, peeling, etc.3. Do not use this product in places with high humidity such as bathrooms.Do not use this product for any purpose other than its intended purpose.4. Do not hand this product to children under the age of six to avoid personal injury5. Do not disassemble, repair or modify this product without permission. May cause equipment failure or injury.For the sake of patient safety, we recommend not to use sleep devices in the following situations:1. When driving;2. When operating complex dangerous mechanical instruments.3. Avoid long‑term strong current stimulating the same position;4. If you find that the skin is burned, you can rest for a few minutes in future use, and move the electrode position slightly before continuing treatment;5. If you find that the electrode burns the skin severely, you should stop using it in time, and use it after treatment and rehabilitation by a specialist.6.The product uses micro current to stimulate neurotransmitters in the cerebral cortex, regulate emotions, and thus promote sleep. It takes at least 15 days for the product to have a significant effect. The product needs to use assisted sleep for a long time, which is not immediately effective.