These are SONY Bluetooth earphones that I purchased a few years ago from the official online shop for around 10,000 yen. I used them a few times and then put them away. I confirmed their operation before listing them, and they connected to my smartphone without any problems, and I was able to play music. I couldn't test if the battery would last until the end, but it didn't drain quickly and require charging. The included accessories are the outer box, the main unit, the charging case, ear tips, and the instruction manual. The USB charging cable is missing, so please use your own cable. Also, please check the product specifications on the website, etc. *Please note that cancellations are not possible after shipping. *The condition is good, but please understand that these are used items. *I am not considering price reductions, so please refrain from comments regarding price reductions. Thank you for your consideration.