[【Hearing Aids】Hearing aids for Seniors are made of the latest materials the shell is nano-coated waterproof and sweat-proof. FCC ROHS certification no radiation and harm to human ears. 【Double Noise Reduction】The newly upgraded smart chip the noise reduction is 30% higher than usual. It sounds more natural and provides you with a wonderful experience. Excellent sound quality and comfortable listening. 【Volume Control】You can choose volume to ensure that you can hear clear sound in different volume environments. Comfortable volume easy to wear anytime anywhere. 【Rechargeable Hearing Aids】It is a USB rechargeable hearing aid no need to change the battery frequently. The hearing amplifier is fully charged for about 2 to 4 hours and it can be used for about 80 hours. Put it in a small box which is easy to carry and go out. 【After-sales Service】1- month money back and 1- month free replacement service & after-sale service for life time. We will try our best to solve all your problems!]