3. Specification Product Name: Visual Eye Massager Model: SD-300 Material: ABS+Protein leather Input: 5V=1A Rated Power: 5W Timer: 10 minutes Battery Capacity: 1500mAh Product Weight: 0.771b Product Size: LB.1xW1.6xH3.5(inch) E丛正一 Put on the device, align the vision windows to you 「 eyes, then adjust the elastic band to fit your head size for comfort. Attention: 1. Remove your contact lenses, glasses, false eyelashes, hair accesso 「ies etc. before use to avoid discomfort. 2.