This hearing amplifier set has 4 modes of noise reduction. Control your electronic hearing aid earbuds.<br/>Charge Once a Week — Your hearing assistive devices - rechargeable hearing aids for seniors - hold 80 hours of battery after charging for 3 hours. When the sound of the hearing aid becomes small or small enough to work properly, the battery power may be low, so please charge the hearing aid at this time.<br/>When charging, plug the supplied USB cable into the power adapter and the hearing aid, and the power adapter's indicator light will be on when it is plugged into the socket.<br/>During the charging process, the charging indicator light on the hearing aid is on, and when it is full, the charging indicator light on the hearing aid will be on for a long time.<br/>For Severe Hearing Loss — Don't leave hearing loss untreated. Keep that part of the brain active with these hearing aids, amplifiers & accessories - hearing aids for tinnitus.<br/>Over Ear Fit — These over the ear hearing aids for seniors pair have an exterior hook function for security and easy removal. There is no left or right side limit<br/>Join the Conversation — Don't let impaired hearing make your social life suffer. These sound amplifiers for hearing loss - hearing devices - hearing aides help improve your ability to engage with others. Follow conversations effortlessly while wearing these hear aid devices<br/>Ready-to-wear & Easy-to-use — One hand operation to adjust volume and settings.<br/>Exceptional Service — We're committed to your satisfaction. If you have any issues with Design & Packaging, or anything else, please contact us. We respond within 24 hours.<br/>List:<br/>1 x Host