Koss SP540

Type: wired; Cabling: unilateral; Cable length/radius: 1.4 ;m; Design: overhead, closed; Type emitters: dynamic; Speaker diameter: 40 ;mm; Nominal impedance: 35 ;Om; Frequency range: 10 – 25000 ;Hz; Sensitivity: 99 ;dB; Detachable cable: +; Connectivity options: Plug 3.5 mm (mini-Jack) ; Cable type: round; ...

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Table of characteristics

Colorblack
Typewired
Cablingunilateral
Cable length/radius1.4 m
Characteristics headphone 
Designoverhead, closed
Type emittersdynamic
Speaker diameter40 mm
Nominal impedance35 Om
Frequency range10 – 25000 Hz
Sensitivity99 dB
Detachable cable+
Connection 
Connectivity optionsPlug 3.5 mm (mini-Jack)
Cable typeround