INSTRUCTIONS FOR USE 1. Please use your own 5V or 1A phone charger, connect USB cable to charging 2. Press the power switch to start work, 3 steps strength, choose your favorite mode, continue press switch to stop it 3. Machine will automatic shutdown after 10 minutes continuous work. MAINTENANCE: Use the soft and slighly damp cloth to wipe. SAFETY WARNING: This product for massage usage only. Do not use it while charging. If you have uncomfortable feeling in use please stop it immediately. Head massager head massage. The massager turns off automatically every 15 minutes. Head massage rod. We also recommend not to exceed 15 minutes at a time. Made of durable, highly elastic PET, lightweight and strong, not easy to deform and fits your head perfectly Built-in rechargeable USB lithium battery, environmentally friendly and convenient to use. Press the red power button to switch the vibration mode between intermittent mode and continuous mode.