Retail price: ¥26,400 ※Official online store price Contents: ・Main unit (left and right earphones) ・Case ・Box ・Accessories 　- 14 ear tips, cable, dedicated cloth case 　- Instruction manual, etc. High-quality wireless earphones compatible with LDAC, capable of up to 6.5 hours of playback. Includes a charging case with a 500mAh battery. Features noise-canceling function. I've tried many wireless earphones, but I recommend these because they have physical buttons, so there are no accidental touch operations when putting them on or taking them off. The sound quality is also good, and I think it's a good pair of earphones among mid-range to high-end models. - Brand: audio-technica - Model name: ATH-TWX7 - Bluetooth version: 5.1 - Supported codecs: LDAC, AAC, SBC - Driver type: Closed-back dynamic - Maximum playback time: Approximately 6.5 hours I have checked the operation and disinfected the ear tips, but please understand that these are used, pre-owned items before purchasing. Furthermore, you can fine-tune the sound quality and turn the noise-canceling function on and off by downloading the dedicated app.