Rechargeable Hearing Aids: The hearing aids can be fully charged within 2-3 hours and can be used for 38-40 hours. The hearing amplifier need to be turned off before charging. The charging box can be fully charged within 3 hours, and the charging box can be used to charge two hearing aids 4-5times. Please charge it for 10-12 hours before your first time using it. Avoid daily expenses of buying batteries and charge anywhere with our rechargeable hearing amplifiers for seniors!.Super Easy to Use: Just wear it, turn on the hearing aid, adjust the volum button according to your needs, these small devices will bring you back in the clear world. Never buy hearing aids that are complicated to operate. The big button design makes it more convenient to use. Our hearing aid is ideal for the elderly people, mild and moderate hearing loss impairment. BUT NOTICE HERE: this hearing aid is not for severe hearing impairment..Invisible Hearing aids: Beige skin-similar color design for invisible looking. Never worry about the awkwardness of wearing a hearing aid. Lightweight design and ergonomics make you more comfortable and firm to wear. It feels comfortable in ear canal, and no burden for ears for long time using. The portable charging box is light and convenient, and can be charged at any time in the pocket. Suitable for all kinds of people with poor hearing and regardless of left and right ears..Advanced Noise Reduction Function: Advanced imported chips provide a more realistic sound, which improving processing, noise cancellation, feedback suppression and background noise removal significantly. So that person can listen,communicate, and participate more fully in daily activities.Please know that scream voice when wearing hearing aid are not a quality problem, maybe the earplugs we choose are not suitable, or the wearing method is wrong..Comfortable Hearing Aids: Our hearing aids for seniors are made of excellent material and comfortable design. Superior sound amplifier system makes some sounds louder so that person can listen,communicate, and participate more fully in daily activities. our hearing devices for elderly people assist in watching TV, on the phone, in normal discourse and more. If you have any problems with the hearing aid, please feel free to contact us. We will reply you within 24 hours.