Electric Headache and Migraine Relief Head Massager Migraine Insomnia Release USB Rechargeable Therapy Machine Relax Health Care Color:black set 2v Memory Voltage

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Electric Headache and Migraine Relief Head Massager Migraine Insomnia Release USB Rechargeable Therapy Machine Relax Health Care Color:black set 2v Memory VoltageHow to use it? 1. Stick the button part of the patch on the machine. 2. Tear off the blue part of the conductive patch. 3. Long press the switch "M" to turn on the machine. (When the blue light flashes, it means the machine is working) 4. Wear the machine on your head. Note that the sticky part of the patch should be in contact with the skin on your forehead. 5. Tap the switch to switch the mode, you can also press the "+" " " button to adjust the