✅【Automatic Power ON/OFF!】 Ultra-smart design with 8-second automatic activation and instant charging when stored. Simply take the hearing aids out of the charging case and they automatically turn ON after 8 seconds (it is recommended to put them on before activation). After use, simply put them back in the charging case to automatically turn them OFF and start charging (orange light on during charging, off when fully charged). Note: Please return both hearing aids to the case at the same time. ✅【One-Touch Volume Adjustment】 Sagis hearing aids adopt a simple design, and you can easily adjust the volume in 4 levels by lightly touching the volume adjustment button (with operation sound). It is recommended to start using them from the lowest volume. Equipped with a high-performance noise-canceling chip, it reduces noise by about 65% while achieving up to 35x voice amplification! This product is suitable for people with mild to moderate hearing loss. 【Confirmation before purchase】 Due to the nature of hearing aids, surrounding environmental sounds (car sounds, wind sounds, everyday sounds, etc.) are also amplified when amplifying human voices. Use in a quiet environment is recommended. ※This is a common characteristic of all hearing aids. ✅【Type-C Rechargeable, No Battery Replacement Needed】 The main unit can be used continuously for up to 20-30 hours on a full charge! Fully covers a full day of "support". The included small charging case (large capacity 1200mAh) provides an additional 200 hours of charging, and the green numbers display the remaining charge of the case (charge the case if it is below 30). When fully charged, it can charge the hearing aids about 7-8 times! ✅The charger is not included, and the green number on the right flashes during case charging, and "100" indicates that charging is complete. ✅【3.5g Ultra-Lightweight & Universal Design for Both Ears】 The 3.5g ultra-lightweight design significantly reduces the burden on the ears, with zero pressure on the ears even with continuous wear for long periods. Based on ergonomics, it is difficult to fall out even while cooking, walking, or shopping. Compatible with both ears, eliminating the need for troublesome left/right identification. The in-ear design does not interfere with glasses or masks, smartly reducing the hassle of daily life, and the unobtrusive aesthetic design reduces psychological resistance during use. ✅Set Contents: Hearing aid main unit, charging case, Type-C charging cable, earplugs (3 sizes), cleaning brush, Japanese instruction manual