Please consider this Tatacon as junk. Please read the description carefully before purchasing. This item is used. ◯ There is a symptom where the right edge is constantly pressed when selecting songs or modes. However, by kneading the surface to calm the symptom (which is very troublesome every time), you can select songs and modes. Furthermore, if you can select a song, the right edge does not get stuck during gameplay, and you can play without any problems. (It often gets stuck again when selecting a song after the results are announced.) Also, there are no malfunctions on the PS4 startup screen. The cross keys, etc., could be used without any problems. ◯ I tried to disassemble it once to fix the above symptoms, but I couldn't do anything and put it back together. The symptoms did not improve, but it was still usable as described above after disassembly. Please use the Tatacon for repair or for parts. ◯ The software can be used without any problems. ◯ The drumsticks have scratches, but can be used without any problems. ◯ There is no original box, but there are no missing items, including the instruction manual. Please understand the above before purchasing.