Feature: 1. 1. Decompression and extensive use: Massage the scalp to make you comfortable and relax, effectively reduce stress, promote blood circulation, and reduce insomnia. It is suitable for athletes, tired people, elderly, office workers, drivers and other people with headaches or stress. 2. 2 Vibration mode: Press the red power button to switch the vibration mode between intermittent mode and continuous mode. Gently massaging the head and even the knees can relax the muscles and relieve tension and fatigue. ( Specification: Material: TPESize: 17.6*13.7*13.7cmCharging voltage: DC5V/1ARated voltage/current: DC3.7V/500mAControl intensity: 3 gearsCharging method: USB charging Package List: 1*Massage1*USB charging cable Note: Do not use the product in the same place for a long time to prevent discomfort. Change the massage position every few minutes.)3. Hands-free: Made of durable, high-elastic PET, light and strong, not easy to deform, and perfectly fits your head. It can be fixed on your head during massage, giving you soft enjoyment. You can enjoy massage and work at the same time.4. Automatic shutdown function: the massager will automatically turn off every 15 minutes, you don't need to spend time remembering how long it has passed, just enjoy the massage. We also recommend that you do not exceed 15 minutes at a time.5. USB charging: Built-in USB rechargeable lithium battery, environmentally friendly and more convenient to use. You can easily charge it through an adapter, power bank or computer.