Unused item. I am not a retailer, so I will answer questions about specifications, etc., to the best of my ability. [Product Information] • Automatically turns on when taken out of the charging case and is easy to operate, just by putting it in your ear. • Equipped with an iC chip, it amplifies the volume by a maximum of 35-50 times while reducing noise by approximately 65%. • Makes it easy to pick up human voices and TV sounds clearly, suitable for mild to moderate hearing support. • 4-level volume adjustment is possible, and the volume can be easily switched with touch operation. • Equipped with a noise suppression function that automatically detects ambient sounds and suppresses loud noises. • L-shaped compact design makes it less noticeable when worn, and the 175° arc shape provides a comfortable fit. • Can be used for 20-30 hours per charge, and the case can charge it up to 7-8 times. • The charging case has an LED display, and the battery level is displayed numerically for high visibility. • USB rechargeable for repeated use, economical and environmentally friendly.