Adjustable elastic headband design, fit most people's head 22 soft silicone massage heads with magnets, which gives you scientific and comprehensive massage strength for your acupoint of eye muscles Multi-frequency vibration, 8 massage modes and Nano blue light therapy which can improve eye circulation, relieve eye fatigue, eliminate dark circles under the eyes, improve sleep quality, and prevent short-eyesight Medical grade silicone material, soft and comfortable, and removable for cleaning USB Rechargeable design, simple button operation, convenient to use