【Excellent Condition】SONY WF-1000XM4 Wireless Earphones Thank you for viewing. ・Purchased used (in very good condition) in September 2023 ・New product reference price: 33,000 yen ・I was looking for wireless noise-canceling earphones with a focus on sound quality. 　I decided to purchase this product, which received high overall ratings, after referring to reviews from various people. 　The sound clarity was excellent, and I thought the sense of presence and balance were outstanding. ・However, since my primary use is video editing work, I ended up using my monitor headphones more often than these earphones, and I rarely used these. As a result, I am selling them this time. ・I used separately sold silicone ear tips, so I don't think I used the original ones much. (These are used items, so there may be some deterioration and signs of use.) ※The condition is very clean, and there should be no problems with use. ※However, please understand that these are used items. ※Images 11-14 are taken from the product description and may differ from the actual product. ※Please feel free to comment if you have any questions. ＜About this product (excerpt from product description)＞ ・IPX4 water resistance. Enjoy music without worrying about rain or sweat. ・Improved connection stability with integrated processor V1 ・Improved battery performance. 8 hours of battery life for the main unit ・12 hours of case charging, for a total of 24 hours. ・Significantly enhanced call performance. ・Advanced audio signal processing with four microphones and sensors. ・Improved fit to the ear. ・Ergonomic surface design increases the contact surface compared to previous models, achieving stable wearing. ・Significant improvement in noise cancellation performance. ・Achieves industry-leading noise cancellation. ・Significant improvement compared to WF-1000XM3. Wind noise is also significantly reduced. ・Noise cancellation performance improved with integrated processor V1, an evolved 6mm driver, and new ear tips. ・LDAC compatible. ・360RA compatible. Achieves overwhelming high sound quality. ・Charging time: Approximately 1.5 hours ・Noise isolation ear tips provide greater holding power in multiple directions, achieving higher wearing stability and a comfortable fit.