Suitable for most mild to moderate hearing losses. Increasing the volume to 30dB can make conversations flow more smoothly without having to repeat or shout. Always keep your hearing aids dry and clean. You'll get used to it after 2-3 weeks. It allows you to better hear sounds in your surroundings, significantly improving your quality of life. Able to isolate the sounds users care about while reducing noise and noise in the environment. EXTREMELLY SMALL& NEARLY INVISABLE Small design, better fit the ear, provides a comfortable wearing Ergonomic curved body.better fit the ear canal Usage 1.Choose a suitablesize earplug and installit on the sound tube. 2.Gently insert the earpluginto the ear canal. 3.Rotate the unit to theproper angle 4.Rotate the knob to adjust the volume to the right level The hearing aid comes with a practical charging compartment, which not only protects the product but also acts as a charger. The case has a built-in battery so the headphones can be charged anywhere, which is great for those who spend long periods of time outdoors. The case is magnetic and attracts the earphones, preventing them from falling when placed in the charger. And you can clearly see the remaining power of the charger including the headphones Rechargeable Battery: Put it into the charging base and get over 30 hours of use in just 2-4 hours. Two separate earphones mean you can use them on the left, right or both ears. If you have hearing loss in both ears, it is recommended to use two hearing aids. Only with the recovery of hearing in both ears can the subtlest differences in sound be detected and the sounds assigned to the environment and space. The device operates with one button and is extremely simple and intuitive to operate. Store the camera in the charging case when not in use. Complete accessories and matching models, the best choice for similar products This package includes Charging box cleaning brush hearing aid power cable 6 different size ear cups