Name: MM 400
Brand: Sennheiser
SKU: 142731
Rating: 4.2 (40 reviews)

3.9

based on all reviews

great
natural sound and a warmth of tone that
beautifully rich

walnut finish is only ever going to be divisive
missing is noise-cancelling
a little too tight for comfort

Sensitivity: , 107 dB
Frequency range: 15, 22000 Hz
Acoustic design: Closed
Sound output: Stereo
Style: On-Ear
Connectivity technology: Wireless

Sennheiser MM 400 - Pros & Cons

great
natural sound and a warmth of tone that
beautifully rich
deep sound
compact and lightweight
They reproduce vocals and instruments well and provide enough isolation for moderately loud environments
are very portable and fold up into a smaller format to transport easily
passive isolation is quite impressive
The dial is meaty and yet easy to turn with one-handed operation
everything else pretty well and comes with a strong case
It is thus logical and easy to use
backlit display is clear and easy to read

walnut finish is only ever going to be divisive
missing is noise-cancelling
a little too tight for comfort
No cherry-picked units sent by brands
their hold to pair procedure and lack of NFC makes them a little tedious to switch between devices
lack of padding on the headband and the ear cups feels a little uncomfortable and fatiguing
lacking a strong isolation performance
The cramped layout
however
is disappointing
an auto shut-off

Sennheiser MM 400 - Technical Overview

	Poor	Average	Good	Excellent
Weight	105 g Best: Cyber Acoustics ACM-7002 Weight: 0.11 g

Sennheiser - Video Reviews (4)

Sennheiser MM 400 X hoofdtelefoon (NL/BE)

Sennheiser MM 400-X Bluetooth Headphones Review

Sennheiser MM 400-X Collapsible Bluetooth Headset Overview | Full Compass

Sennheiser MM 400 - Full Specifications

Sound output	Stereo
Style	On-Ear
Connectivity technology	Wireless
Headset (integrated/enclosed microphone)	yes

Weight	3.7 oz

Microphone type	Built-in microphone
Microphone frequency	100 - 10000
Microphone in	yes

Buttons	Volume

Colour of product	Black
Acoustic design	Closed
Attachment type	Headband
Foldable	yes

Sensitivity	< 107
Frequency range	15 - 22000

Bluetooth version	2.1+EDR
Bluetooth profile	AVRCP HSP HFP A2DP
Bluetooth codec	SBC
Wireless connection	Bluetooth
Wireless range	10
Type of connector	3.5mm
USB	yes
Type of USB connector	USB Type-A

Battery operated	yes
Battery life	20.0 h
Talk time	20.0 h
Charging via USB	yes

Sennheiser MM 400 - Q&A

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Sennheiser MM 400 Sennheiser - Editorial Reviews (4)

3.5

Based on 4 reviews

Sennheiser MM 400 Sennheiser MM 450-X Wireless Review

RTINGS.com

Published: 23.03.2016

Sennheiser MM 450-X Wireless Review

3.5

The Sennheiser MM 450-X Wireless are compact on-ear headphones that sound surprisingly great. They reproduce vocals and instruments well and provide enough isola...