Thank you for viewing. I purchased this for my mother-in-law, but she didn't want to use it, so I'm selling it. It has been opened and powered on, but it's practically unused. There is a small scratch on the "LCD" part as shown in the second photo when setting the language, etc. However, there is no problem with the display of "battery level" after turning on the power. Please consider this only if you understand that it is a used item. The main specifications are as follows. 【Advanced Industry Technology Neckband Hearing Amplifier】With advanced industry technology, it is both a hearing amplifier and a Bluetooth headphone. With a 16-channel digital chip and intelligent noise reduction function, you can hear clear audio. It is equipped with a howling suppression function, making it more comfortable to wear. 【No Annoying Howling】Built-in feedback suppressor and predictive feedback suppression technology. When you turn it on, the sound collection function automatically turns on, with no howling and no complicated adjustments required, which can boost the wearer's confidence. 【Comfortable Fit and Independent Volume Adjustment for Left and Right】Designed based on the principle of universality of the auricle, combined with ultra-soft silicone ear tips, your ears won't hurt even after wearing it for a long time. By double-clicking the power button to turn on the equalization mode, you can independently adjust the sound collection volume of the left and right sides. 【Bluetooth 5.2 - Fast and Stable】Lossless audio source transmission, 10-15M wireless music listening, and Bluetooth calls without delay. This product can be used as a Bluetooth headphone, and you can answer and make phone calls. ✨️Instant purchase OK✨️