These are studio quality enclosed headphones. The flat sound and closed-type block out ambient noise for comfortable listening in the production environment. In addition, it is sealed so it is comfortable to use even as portable as it does not produce sound leakage, and there is no mixture of outside sounds.
To prevent accidents, please do not use it while driving. Please be careful when using it while walking. Please use it at a moderate volume. When connected to a mono device, the right channel will not be sound. Please prepare a separate mono to stereo converter adapter