Purchased at Yodobashi last year, along with other audio equipment. I've only used it for testing and checking the included items after purchase. Testing has been done with the two included cables (3.5mm). It's been a while since I bought it, and it's been stored by a layman, so it's not completely flawless. Please refrain from purchasing if you are looking for perfection. Please consider the images, and feel free to ask any questions you may have in the comments! ⭐️Due to moving, I do not have the documents (instruction manual), so please be aware of this. It's a physical connection, not wireless, so you should be able to understand and use it immediately. ⭐️TAGO STUDIO T3-03 Headphones Black Standard Model Original box, pouch, 2 x 3.5mm cables, conversion plug All included items are shown in image 3! Packed and ready to ship. Regarding sound quality, I own all three TAGO STUDIO models, and the 03 has a strong "don-shari" sound. Vocals are forward, the range is narrow, and the resolution and separation are good. It has a strong monitor feel, allowing you to clearly grasp the source and vocals. The cables are compatible with the 01, so you can also connect it with a 4.4mm balanced cable, etc... which will improve the separation and resolution. Verified with TAGO STUDIO 4.4 original and Nobunaga 4.4. To prevent any trouble, cancellations and returns after purchase are not accepted, so please bid only if you agree. Also, it will be listed on other sites. If the item is out of stock, we may have to cancel the transaction due to the priority of the first buyer, for which we sincerely apologize. Due to the nature of my work, my schedule is irregular, so replies and shipping may be delayed. Thank you for your understanding. Basically, I ship within the same day or the next day. I have adjusted the price considering the market price, so I will not respond to unreasonable price negotiations. Regarding packaging and shipping... I basically pack compactly. I will also use recycled materials and processed cardboard boxes. I will ship in a processed cardboard box that fits the size. Thank you!