3 Review(s)

Improves sleep, concentrates, and protects hearing.Instructions:1. Wash your hands and pinch the earplugs with the fingers of one hand.2. Hold the other hand over the ear and pull the ear outward to open the ear canal.3. Insert the earplug into the ear canal, slowly, gently and rotate into the ear, Keep 3/4 out to remove the earplugs.Note:1. Noise reduction earphones can only reduce noise decibels, can not isolate noise.2. Remember to put the ear up and out before putting it into your ear, and put it in the right position to get the effect.3. When inserting or removing, it should be gently, slowly, rotated, inserted and removed, and should not be jerked.4. Beware of children swallowed, children should be guided by adults.