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Compare 3 products

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Sennheiser CX 400-II Headphones
Sennheiser CX 400-II
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Sennheiser Momentum Headphones
Sennheiser Momentum
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Westone UM PRO 20 Headphones
Westone UM PRO 20
Available colors
Editiorial reviews
1
1 editorial reviews
Fans of true wireless earphones looking for audio quality above all else should definitely take a look at the Sennheiser CX 400BT.Read more
Read editorial reviews
47
4.3 out of 5
25 user ratings
5 stars
56 %
4 stars
44 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
55
3.9 out of 5
55 user ratings
5 stars
29 %
4 stars
36 %
3 stars
32 %
2 stars
1 %
1 stars
0 %
46
4.0 out of 5
46 user ratings
5 stars
41 %
4 stars
30 %
3 stars
19 %
2 stars
8 %
1 stars
0 %
44
3.7 out of 5
44 user ratings
5 stars
22 %
4 stars
36 %
3 stars
34 %
2 stars
4 %
1 stars
2 %

Technical details

StyleIn-EarOver-EarIn-Ear
Connectivity technologyWiredWiredWired
Sound output
N/A
StereoStereo
Headset (integrated/enclosed microphone)
N/A
yesyes
Magnet material
N/A
Neodymium
N/A

Design

Colour of product
  • Black
  • Black,Silver
  • White
  • Black
  • Brown
  • White
  • Black
  • Transparent
Acoustic design
N/A
ClosedClosed
Attachment type
N/A
HeadbandEar canal
Body material
N/A
  • Leather
  • Stainless steel
Foam
Category
N/A
Travel and CommutingAudiophile
Noise isolating
N/A
yesyes
Water resistant
N/A
N/A
no

Sound

Channels2
N/A
2
Impedance16.0 Ω18.0 Ω27.0 Ω
Frequency range
N/A
16 - 2200020 - 18000
Diaphragm diameter
N/A
1.6 in
N/A
Driver technology
N/A
DynamicBalanced
Total harmonic distortion (THD)
N/A
0.5 %
N/A
Maximum input power
N/A
200.0 mW
N/A
Sensitivity
N/A
N/A
< 119
Simulated surround sound
N/A
N/A
no

Connectivity

Cable length1.21.41.3
Inputs supported
N/A
3.5mm3.5mm
3.5 mm/6.3 mm adapter included
N/A
yes
N/A
Type of connector
N/A
3.5mm
N/A
Detachable cable
N/A
yesyes
USB
N/A
N/A
no

Often compared with Sennheiser CX 400-II

Often compared with Sennheiser Momentum

Often compared with Westone UM PRO 20