Used only 2 or 3 times. Complete with all accessories, no issues, operation confirmed. I bought these because I thought I lost my previous earphones, but I found them, so I'm selling these. ■ Advanced Sound Technology ・ Equipped with a 10mm dynamic driver with "DLC (Diamond-Like Carbon)" coating diaphragm ・ Hybrid noise canceling with real-time correction function, providing significantly improved noise cancellation ・ Equipped with JBL's proprietary "Spatial Sound" function, allowing you to enjoy a spacious sound field with all content ・ Clear voice calls with high-quality microphone performance and wind noise countermeasures ・ Compatible with Bluetooth version 5.3 LE Audio ■ Perfect Fit ・ Hybrid design that further evolves JBL's unique "short stick type" ・ Comfortable fit in the ear canal with the dual oval shape design ・ Approximately 30% smaller than the previous model, allowing for beautiful fit in a wide range of ear sizes ■ Supreme Functionality ・ "JBL Headphones" app for more advanced personalization ・ World's first smart touch display charging case that allows you to use app functions even without a smartphone ・ Equipped with desirable features such as "multipoint" that can connect to two devices simultaneously and Qi wireless charging ・ Up to approximately 40 hours*2 of wireless playback and fast charging that allows for 4 hours of continuous playback with a 15-minute charge Thank you for viewing.