STUDIO HEADPHONES 'Building on our legacy of studio monitors, the MC-100 headphones deliver the audio performance Mackie is known for, with their distinctive, always professional design. Featuring custom high-performance drivers for clear, balanced sound, plus an ergonomic headband and ear cushions for hours of listening comfort. Perfect for studio monitoring, content creation, or simply enjoying his favorite music on the go. 1/4'' jack adapter, Frequency Response: 15-20k Hz, Impedance 32 Ohms, transducer size: 40 mm, Sensitivity 95 dB, cable length: 3m, Weight, 233g.'