I opened it and played it once. There are two mouthpieces, and I'm not sure which one I used, so I disinfected them with alcohol. If you're concerned, please refrain from purchasing or buy a new mouthpiece. An English instruction manual is included. The box has a crease, but it was like that from the beginning. Please check the photos. 【Versatile Sound Options】This electronic wind instrument offers 10 different tones, including various instruments such as saxophone, clarinet, and flute. It also features 12 types of up/down tuning, 12 accompaniments, and 2 fingering methods, allowing for a wide range of musical expression. 【BT Connection】Equipped with BT technology, this wind instrument can easily connect to music software like Mini, providing a seamless and convenient playing experience.