Excellent Hearing Experience With intelligent noise reduction chip which can greatly reduces the impact of environmental noise, static electricity and provide HD sound. our hearing aids are great choices to mild to moderate-severe hearing lo. Rechargeable with Larger Capacity Only need 2~3 hours to charge full power for charging case which can support hearing aids to use 160 HOURS. That means you can use it whole week under once charge. Anti- Screaming The whistling -proof dome makes it not whistle at any volume. And also add a smart AI system design do it best to reduce screaming which can protect the wearer hearing better. Comfortable Wearing Experience ITE in the ear Nano design makes it Light and comfort, easy to carry. Whether you're running or jumping, the nano hearing aids can wears firmly on the ears and does not fall easily. More Friendly to Seniors Mechanical volume control knob can adjust the appropriate volume by once. After that, you only need put ON to use this hearing aid. Avoiding the tedious operation of resetting the volume level after each boot. 4 Soft Earplugs 4 size of Earplugs can fit different ear size better.(Make sure the Soft earplugs fit snugly in the ear canal, otherwise there will be a harsh sound.) Ideal Gift for Someone Suffering from Hearing Problem hearing aids are perfect gifts for the someone suffering from hearing problem to bring them back to normal life. So they will not mi the conversation with friends and family. They can hear love words and laughter from everyone and drive their loneline away. Exclusive Customer After-Sales: 7x24 hours of non-stop customer service allows you to enjoy real-time communication, 30-day no reason to return,18-month long warranty for worry-free shopping, Wondfo worth choosing