【Automatic Power On/Off】 It automatically turns on 8 seconds after being taken out of the charging case, and not only does it automatically turn off when returned to the case after use, but it also starts charging simultaneously. The orange light indicates that the hearing aid is charging, and it turns off when charging is complete. Smart and convenient, no more complicated operations! This is a revolutionary user-friendly design that even seniors can use without hesitation. *To prevent feedback, please be careful not to cover the microphone part with your hands or clothing. 【Easy Operation for Seniors】 With a light touch of your fingertip, you can adjust the volume in 4 steps. Confirmation sounds are played during operation, so you can confirm the volume by the number of sounds. With the latest digital noise reduction technology, it suppresses ambient noise while clearly amplifying voices and TV sounds (up to 35dB) - protecting important "sounds" and reducing stress and anxiety caused by "difficulty hearing." Designed for those with mild to moderate hearing loss. 【Enjoy for a Long Time, Significantly Reducing the Hassle of Charging!】 With a power-saving design, you can use it for up to 20-30 hours on a single charge, so you can use it without worrying about the frequency of charging! In addition, the included charging case can also charge for up to 200 hours! With a total of 230 hours of ultra-long operation, you are completely free from the hassle of charging! The remaining charge of the charging case can be seen at a glance with the green number display. You can enjoy clear audio anytime, anywhere. There is no need for troublesome battery replacement, making it an economical and eco-friendly design. 【Ultra-Lightweight at Just 3.5g for Comfortable Wear】 Achieving a lightness that makes you forget it's even there, your ears won't get tired even if you use it all day long. The compact size fits snugly even in small ears. There is no distinction between left and right, so you can put it on either ear immediately. 【Natural Fit for All-Day Comfort】 An in-ear hearing aid that achieves a natural fit that seems to melt into your ear. It is completely unnoticed by those around you, and it does not interfere with glasses or masks, so there is zero hassle. The unique curve based on ergonomics fits perfectly to the shape of your ear, so you don't have to worry about it falling out. Set Contents: Hearing aid body, charging case, 3 sizes (S/M/L) of soft ear tips, cleaning brush, Japanese manual, Type-C cable included