Electric Head Massager Low Noise USB Rechargeable Vibration Scalp Arm Leg Neck MassagerGreen Item Type: Head Massager Material: ABS + Silicone Power Supply: Lithium battery Battery Capacity: 1000mAh (built-in) Mode: Fast speed mode, slow speed mode, mixed mode Applicable Parts: Cervical vertebra massage, arm massage, belly massage, leg massage, instep massage, sole massage Operation Method 1. Start: in the shutdown state, short press the open key and the product starts to run 2. Mode: press the open key to switch between three modes of the product (fast, slow, mixed fast and slow) 3. Shutdown: Long press the open key to shut down the product. The product will automatically shut down after running for 10 minutes by default 4. Charging: Charging time is about 2-3h, blue indicator flashes during charging;When fully charged, the indicator light is constant on;The product protects itself in the charging state and stops running Note: 1. Do not use if there are discomfort symptoms such as swelling, inflammation, blood stasis or injury on the head. 2. Do not use this product when suffering from hypertension and mental illness. 3. Do not use silicone or plastic products that cause skin problems or disorders. 4. Severe stroke, blood pressure abnormality, please consult a professional physician. 5. Please use the power adapter of 5V/1A and pay attention to electricity safety. 6. This massager is a household electronic healthy care product, not used for diagnosis, treatment and other purposes.