Thank you for viewing. Product Description: 【Bone Conduction Hearing Amplifier - Advanced Industry Technology】 With advanced industry technology, this is both a bone conduction hearing amplifier and a Bluetooth headphone. Featuring a 16-channel digital chip and intelligent noise reduction, you can hear clear audio. It transmits sound directly to the auditory nerve through the skull, without transmitting sound through the ear canal, thus not damaging the eardrum. Equipped with a high-performance chip, it reduces noise by approximately 90% while amplifying sound up to 40 times! 【No Annoying Feedback】 Built-in feedback suppressor and predictive feedback suppression technology. The sound collection function automatically turns on when powered on, eliminating feedback and requiring no complex adjustments, boosting the wearer's confidence. The sound collection mode automatically turns on when powered on, and you can turn the sound collection function off or on again by briefly pressing the power button. A hearing amplifier specialized for sound collection! Easy operation even for the elderly! 【USB Rechargeable - Lightweight】 TYPE-C charging, fully charged in about 2 hours, can be used for about 10-12 hours. The earphones weigh approximately 25g and are made to be very light, reducing the burden of wearing them for long periods.