Koss Porta Pro Headset
Image source — © Koss
Model name
Porta Pro Headset
Transducer principle
Dynamic or Isodynamic
Scheme
Open
Wearing style
Over-ear
Frequency response low +/- 10dB (Hz)
15
Frequency response high +/- 10dB (Hz)
25 000
Max. sound pressure level (dBSPL (1 kHz @ 5% THD))
N/A
Connection type
Wired
Connector (mm)
3.5mm
Sensitivity (dBSPL (1 kHz/ 1 mW)))
101
Impedance (Ohm (1 kHz))
60
Playback time (hours)
N/A
Weight (g)
N/A
Official link
It is a lightweight and convenient two-way USB headset, perfect for office tasks, online conferences and working with language training programs. The ears here are false, with a unique D-shaped cups that follow the contours of the ear for maximum comfort even with prolonged wear.
One-way USB office headset with overhead design, great for call centers, business calls, distance learning and online chat. The headset is equipped with a comfortable headband and a D-Profile ear pad, which provides comfort during prolonged use and good passive noise insulation.
A wired stereo headset for work, training, and online conferences, designed for all-day comfortable use. These are semi-closed overhead two-way headphones with a headband and comfortable D-profile foam ear pads, which isolate external noise well and do not tire when worn for a long time.
It is a lightweight two-way headset with a 3.5mm jack designed for office work, call centers, online training and VoIP communications. Ear pads with a branded D-profile provide a comfortable fit and good sound insulation during long conversations.
It is a lightweight, open-type mono headset with an overhead ear pad (on one ear), focused on computer tasks: Internet telephony, conference calls, training and office work. One of the features is a flexible electret microphone with noise cancellation, which makes it convenient for voice communication even in noisy environments.