Thank you for viewing this product from among many others. ★ Instant purchase OK ★ We aim to ship the next day (We will ship the same day depending on the timing of purchase. If it is difficult to ship the next day, we will contact you with the shipping date) ★ Feel free to comment! Product Name ⇒ Bone Conduction Hearing Amplifier Condition ⇒ Brand new, unused Waterproof measures will be taken, and it will be shipped fixed in a Yu-Packet Plus dedicated box. [Bone Conduction Hearing Amplifier・DSP High-Performance Chip] It is both a bone conduction hearing amplifier and a Bluetooth headphone. With a DSP high-performance chip and intelligent noise reduction function, you can hear clear audio. It transmits sound directly to the auditory nerve through the skull, without transmitting sound through the ear canal, and does not damage the eardrum. Equipped with a high-performance chip, it reduces noise by about 90% while amplifying sound up to 35 times! [Easy to Use・2 Modes] When you turn on the power, the hearing amplifier mode automatically turns on, and you can switch the hearing amplifier mode by briefly pressing the power button (weak noise reduction mode → strong noise reduction mode). After connecting to your smartphone via Bluetooth, the hearing amplifier mode will automatically turn off when you receive a call. When the call ends, the hearing amplifier mode will automatically turn on in about 3-5 seconds. [No need to enter the ear, comfortable to wear・Bluetooth 5.3 fast and stable] It fits snugly in both ears and has an ergonomic sound conduction structure that adheres to the skin, so your ears won't hurt even after wearing it for a long time. Lossless sound source transmission, wireless music listening of about 10M, and Bluetooth calls without delay. It can be used as a Bluetooth headphone, and you can answer and make calls. [Magnetic USB charging・Lightweight・IPX5] Magnetic USB charging, fully charged in about 2 hours, can be used for about 15 hours. The earphones weigh about 29g and are made very light, reducing the burden of wearing them for long periods of time. Compatible with IPX5 waterproof and dustproof standards. Training is required before the original effect of the hearing amplifier is demonstrated, and it may take some time. It takes 2-4 weeks for the brain to get used to the new sound. We recommend starting with 2 hours of use per day and gradually increasing the usage time.