This is the gold model of the Xiaomi Buds 4 Pro. It is Xiaomi's flagship wireless earbuds. There are no operational issues. There is no battery degradation. The only included item is the main unit. It is equipped with active noise cancellation, and its performance is not inferior to that of the AirPods Pro 2. It also supports LDAC, allowing you to enjoy high-quality music. The sound tends to be slightly V-shaped, but among wireless earbuds, the sound coloration is minimal, making it relatively flat. The basic performance is quite high, and personally, the sound is better than the AirPods Pro 2. The retail price is high at 26,800 yen, and used ones are rarely available. How about taking this opportunity? Negotiations for price reduction are generally not possible.