Listing on behalf of my mother. Manufactured on May 24, 2022. Please check the last photo. Purchased around January 2023 and used for about a year. Retail price: 33,000 yen. Will be carefully packaged and shipped. Shipping via anonymous Rakuraku Mercari service. My mother feels that her left ear is slightly harder to hear with these, but it may be a setting issue. I connected and checked them myself, and I only noticed a slight difference. They have been tested and are working without problems, but please refrain from purchasing if you are concerned. The ear tips will be wiped with an alcohol wipe before shipping. Unused ear tips will be shipped in their original bag. The following information is from the manufacturer's website: 【Manufacturer】 BOSE (Pronounced "Bose") 【Product Name】 QuietComfort Earbuds 【Color】 Triple Black 【Specifications】 ・Noise-canceling earbuds - Featuring the world's most effective noise-canceling technology and Aware Mode to recognize ambient sounds. ・High-fidelity audio – Delivers immersive sound for music, podcasts, and videos with a unique acoustic structure. Active EQ optimized for volume ensures balanced sound at any volume. ・Comfortable and stable wireless noise-canceling earbuds – Includes three sizes of StayHear Max tips. Provides a stable fit. Soft silicone material provides a comfortable and stable fit while passively blocking noise. 【Product Condition】 There is some wear and tear, but please check the photos for any scratches or stains. Thank you. 【Included Items】 Box Ear tips Charging cable Instruction manual *Everything shown in the photos is included. 【Operation Check】 Operation confirmed, charging and use are both possible.