Brand

KOSS PortaPro 25th Anniversary

Rating:

headphones, miscellaneous, registration open, 15-25000 Hz, 60 Ohm, cable 1.2 m, Jack plug 3.5 mm and 6.3 mm

General information (KOSS PortaPro 25th Anniversary)
Release date on the market 2009
Main (KOSS PortaPro 25th Anniversary)
Type headphones
Design miscellaneous
Acoustic design open
Wireless interface
Design features (KOSS PortaPro 25th Anniversary)
Cable length 1.2 m
Plug 3.5mm i 6.3mm
Volume control
Specifications (KOSS PortaPro 25th Anniversary)
The lower boundary frequent. range 15 Hz
The upper border is frequent. range 25 000 Hz
Nominal impedance 60 Ohm
The coefficient. harmonic distortion (THD) 0.2 %
Weight 79 g
The active noise cancellation
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