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Compare 3 products

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Koss Porta Pro Headphones
Koss Porta Pro
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Marshall Major III Headphones
Marshall Major III
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Sennheiser PX 100-IIi Headphones
Sennheiser PX 100-IIi
Available colors
Editiorial reviews
15
3.9 out of 5
4 user ratings
5 stars
25 %
4 stars
50 %
3 stars
25 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
7
3.9 out of 5
5 user ratings
5 stars
20 %
4 stars
60 %
3 stars
20 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
11
3.7 out of 5
6 user ratings
5 stars
0 %
4 stars
83 %
3 stars
16 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
61
3.8 out of 5
61 user ratings
5 stars
40 %
4 stars
19 %
3 stars
22 %
2 stars
11 %
1 stars
4 %
53
3.8 out of 5
53 user ratings
5 stars
26 %
4 stars
43 %
3 stars
18 %
2 stars
5 %
1 stars
5 %
34
4.1 out of 5
34 user ratings
5 stars
32 %
4 stars
50 %
3 stars
17 %
2 stars
0 %
1 stars
0 %

Technical details

Sound outputStereoStereoStereo
StyleOn-EarOn-EarOn-Ear
Connectivity technologyWiredWired & WirelessWired
Headset (integrated/enclosed microphone)noyesno
Magnet materialNeodymium
N/A
Neodymium

Design

Colour of product
  • Black
  • Black,Silver
  • Black
  • Brown
  • White
  • Black
  • Black,Grey
  • White
Attachment typeHeadbandHeadbandHeadband
CategoryAudiophile
N/A
Studio
Foldableyesyesyes
Noise isolatingyes
N/A
N/A
Connector contacts platingGold
N/A
N/A
Acoustic design
N/A
ClosedOpen

Dimensions

Weight2.79 oz6.28 oz2.12 oz
Width
N/A
N/A
5.71 in
Depth
N/A
N/A
2.95 in
Height
N/A
N/A
1.06 in

Sound

Impedance60.0 Ω32.0 Ω32.0 Ω
Sensitivity< 101< 97< 114
Frequency range15 - 2500020 - 2000015 - 27000
Driver technologyDynamicDynamicDynamic
Driver size0.14 in1.57 in1.18 in
Total harmonic distortion (THD)0.2 %
N/A
0.1 %
Diaphragm diameter
N/A
N/A
0.0 in

Connectivity

Inputs supported3.5mm
N/A
3.5mm
Cable length1.2
N/A
1.4
3.5 mm/6.3 mm adapter includedyes
N/A
no
Type of connector3.5mm3.5mm3.5mm
USBnoyes
N/A
Detachable cablenoyesno
Bluetooth profile
N/A
APT-X
N/A
Wireless range
N/A
10
N/A
Type of USB connector
N/A
Micro-USB
N/A

Features

ButtonsPlay/Pause
  • Answer button
  • Next song
  • Play/Pause
  • Previous song
  • Volume
  • Answer button
  • Keyguard
  • Next song
  • Play/Pause
  • Previous song
  • Volume
NFCyes
N/A
N/A
Carrying caseyes
N/A
yes

Power

Battery operatednoyesno
Battery recharge time
N/A
3.0 h
N/A

Often compared with Koss Porta Pro

Often compared with Marshall Major III