Closed-back headphones that are resistant to sound leakage and external noise. The lightweight design and cushioned ear pads reduce strain on the ears during extended use and maintain a comfortable fit. The well-balanced, three-dimensional sound can be enjoyed in a wide range of situations, including listening to music, watching videos, and practicing instruments.Speaker size: 40mm (diameter) Playback frequency range: 20Hz to 20KHz Sensitivity: 105dB±3dB Impedance: 32 ohms Rated output: 30mW Maximum input: 50mW Plug size: 3.5mm stereo mini plug Cable length: approx. 1.7m Accessories: 6.35mm stereo conversion plug Weight: Approx. 200g Packing size: 182*240*81mm (including header) Total weight: Approx. 284g (including packaging) *The conversion connector is a screw-type detachable type and comes pre-installed.