Restore Authentic Human Voices: Equipped with newest digital chip, these hearing aids utilize adaptive noise cancellation technology to filter out background noise. They can accurately capture and amplify human speech frequencies, ensuring crystal-clear conversationsEasy Operation：The hearing aids designed for seniors with automatic power on/off. It will automatically turn on/off when taken out or placed back into the charging case. Charging case designed with led display, you can visualize the remaining power of the charging case and keep away from charging anxiety.Powerful Battery Performance: The hearing aids take only 1.5 hours to fully charge and can be used for up to 20 hours. The charging case stores 100 hours of standby power, enough to charge the .