The Roland RH-200 Monitor Headphones are sonically and physically designed specifically for studio use, they deliver mondo power, comfort, and accuracy. 40mm drivers with neodymium magnets and copper-clad aluminum wire voice coils offer the precision sound needed for mixing duties and realtime monitoring. The Roland headphones have gold-plated 1/8" stereo connector with 1/4" adapter plus high-quality cable with built-in strain relief.