Yamaha HPH-MT7 Monitor Headphones, Black Closed-back, circumaural design for excellent isolation 40 mm custom drivers with CCAW voice coils deliver a broad frequency range and accurate response Smooth synthetic leather and large low-resistance cushions ensure stress-free wearability and high levels of isolation Three-dimensional arm pivot construction and adjustable slider length alleviate fatigue when working for extended periods 6.3 mm diameter standard stereo plug adaptor and carrying bag included