SONY Wired Closed-Type Studio Monitor Headphones, Black, MDR-CD900ST

Type: Closed dynamic, Driver unit: 40mm, dome type (CCAW adopted) Maximum input: 1,000mW, Impedance: 63Ω, Sound pressure sensitivity: 106dB/mW Frequency response: 5~30,000Hz Cord length: Approx. 2.5m, Plug: Stereo standard plug, Weight: Approx. 200g (excluding cord)