--Intelligent chip reduction is clear and crisp: The latest hearing aids use updated DSP digital chips, so you can get rid of the whistle problems of ordinary hearing aids on the market. Feel free to interact with your environment, talk, watch TV, hear the birds outside, children's laughter, hunting sounds, etc.;- Mini invisible smart hearing aid: Intelligent dual microphone noise reduction, IPX4 waterproof, easy to turn the button to freely adjust the volume in 5 levels, insert it into the ear. Put it in the box and it will turn off automatically.;Note: Do not block the microphone, there will be a whistling sound. --Lightweight and comfortable to wear for a long time: The French designer designed the shape to fit the ear, increase firmness and prevent -Fast charging and long-lasting: Rechargeable hearing aids with portable charging case, 15 minutes of fast charging gives 30 hours of hearing, and the case can last for 2 hours for a week. and loved ones during regular festivals.