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Why Choose Us? ❤ The noise reduction effect of the latest digital smart chip brings you a clearer sound. ❤ Specially designed for people with hearing impairment, that will not feel pain even wearing for a long time. ❤ Simple operation, one button controls 4 modes to perfectly adapt to different listening environments. ❤ The digital chip constant current control makes the battery life longer. You can wear it anywhere without frequent battery replacement. NOTE: ► This item is not recommended for individuals with serious to severe hearing loss. ► The product is not waterproof, Not for use in water, like shower ► Please increase the volume control gradually to avoid a sudden increase in sound. ► Please clean the products every day, avoid ear plug and sound collecting hole being blocked by foreign objects. It will affect the effect of the sound amplifier. ► Please select suitable earplugs, put the earplugs into the ear canal snugly, If the earplug is not inserted well into the ear canal and lead to air leakage, the hearing amplifier will produce annoying whistle from electric current. Professional Customer Service If you have any questions during use, please feel free to contact us, our team will provide you with professional responses within 12 hours.