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Marshall

Marshall Monitor III A.N.C.

Name: Marshall Monitor III A.N.C.
Brand: Marshall
SKU: B0DFDT1TWC
Price: 372.99 USD

Current price · Amazon US

$372.99

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Price last checked 2h ago

Noise Isolation / ANC & sound

7/ 10

0.010.0

A 7 puts its noise isolation / ANC in the top third of over-ear headphones we've measured.

Measured on 86 of the 240 we've cataloged.

4.4/ 5

SoundMDAQS Overall

4.4

1.05.0

A 4.4 puts its audio quality in the top third of over-ear headphones we've measured.

Measured on 44 of the 240 we've cataloged.

Key specs

Battery Life Wireless

100 hAbove average

100 h

11 h100 h

above average for over-ear headphones — based on 150 of 240 we've cataloged.

Charging Method

USB-CMost common

Usb-c87%Micro usb10%Others3%

Usb-c is the most common — on 87% of the 135 over-ear headphones we've cataloged (of 240).

Bluetooth Version

5.3Most common

5.326%520%5.218%5.411%

5.3 is the most common — on 26% of the 145 over-ear headphones we've cataloged (of 240).

Connection Type

Wired-3.5mm48%Bluetooth44%Wired-usb-c7%Others1%

Bluetooth appears on 44% of the 215 over-ear headphones we've cataloged (of 240).

Battery

Battery Life Wireless: 100 h
Charging Method: USB-C
Full Charge Minutes: 15 min
Battery Life Anc On: 70 h
Battery: Yes
Fast Charging: Yes

Connectivity

Bluetooth Version: 5.3
Connection Type: Bluetooth wireless
Bluetooth Codec: SBC, AAC
USB Charging: Yes

Design

Weight: 250 g
Foldable: Yes

Features

Spatial Audio: Fixed
Companion App: IOS + Android
Control Type: Physical buttons
Eq Customization: Full parametric EQ
Auto Pause: Yes

Sound

Acoustic Design: Closed-back
Ambient Mode: Adjustable level
Frequency Response Signature: Warm
Noise Cancellation Type: Active

Build

Material Ear Cups: Memory foam, PU leather
Material Headband: Leatherette with silicon padding

Microphone

Microphone: Yes
Wind Noise Reduction: Yes
Noise Reduction Type: Passive noise isolation

SoundGuys review

Read the full review ›

SOUNDGUYS rating

7.5/ 10

Recommended

Reviewed byChase BernathBrand & Partnerships ManagerReviewed February 2025

Noise cancelling8.3

Isolation7.0

Comfort & fit8.5

Connectivity7.5

Design8.0

Portability7.0

The verdict

The Marshall Monitor III ANC are solid all-around headphones. With wired and wireless listening, decent noise canceling, exceptional battery life, and a great carrying case, these headphones make for a great travel companion.

✓What we like

✓Battery life

✓Excellent travel case

✓Comfortable design

✕What could be better

✕No water resistance

✕No high-res Bluetooth codecs

Read the full SoundGuys review →

Lab data

How we test ›

Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.

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0 of 4 overlay slots used

Marshall Monitor III A.N.C.SoundGuys Headphone Preference Curve

Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.

Frequency response — measurement data

Marshall Monitor III A.N.C.: frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Response (dB)
20	6.5
25	5.5
32	5.0
40	5.1
50	4.0
63	5.7
80	5.2
100	4.3
125	3.6
160	1.8
200	0.1
250	-1.9
315	-4.3
400	-4.3
500	-2.9
630	-1.7
800	-1.4
1000	0.2
1250	3.5
1600	5.6
2000	6.5
2500	7.8
3150	13.3
4000	13.3
5000	10.2
6300	11.2
8000	12.0
10000	8.8
12500	3.6
16000	-7.4
20000	-17.5

Marshall Monitor III A.N.C.

Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.

Passive isolation — measurement data

Marshall Monitor III A.N.C.: passive isolation, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Attenuation (dB)
21	8.2
26	3.7
33	-0.6
41	-0.3
52	-1.3
65	-1.5
82	-1.5
103	-1.2
130	0.1
163	-0.5
205	0.7
259	2.5
325	3.6
410	3.4
516	6.2
613	8.3
772	11.4
972	14.0
1220	16.1
1540	22.9
1940	33.2
2440	37.1
3070	28.7
3870	36.8
4870	42.1
6130	46.9
7720	48.1
9720	46.4
12200	37.4
15400	44.7
19400	44.3

Marshall Monitor III A.N.C.

Total attenuation (dB) with ANC on — passive isolation plus active noise cancelling. Higher on the chart means more attenuation.

Noise cancelling — measurement data

Marshall Monitor III A.N.C.: noise cancelling, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Total attenuation (dB)
21	15.6
26	13.7
33	10.1
41	9.4
52	10.0
65	11.2
82	17.7
103	23.2
130	27.2
163	24.6
205	24.0
259	22.1
325	20.0
410	18.8
516	20.4
613	18.6
772	18.4
972	22.4
1220	18.8
1540	20.7
1940	33.1
2440	35.8
3070	28.9
3870	35.4
4870	41.2
6130	43.5
7720	42.8
9720	44.2
12200	36.4
15400	45.9
19400	42.9