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Razer Man O’ War Wireless Headphones Review

Tested using Methodology v1.3.1
Updated May 29, 2018 at 04:41 pm
Razer Man O’ War Wireless Picture
6.0
Mixed Usage
7.1
Neutral Sound
5.5
Commute/Travel
5.3
Sports/Fitness
6.1
Office
7.4
Wireless Gaming
5.8
Wired Gaming
7.0
Phone Call
Type Over-ear
Enclosure Closed-Back
Wireless Yes
Noise Cancelling No
Mic Yes
Transducer Dynamic

The Razer Man O' War is an above-average sounding gaming headset. These headphones are a bit bulky and plasticky, especially when compared to the Razer Kraken Pro V2. They're not the most comfortable, but their low latency and great mic make them a suitable option for gaming. They should also be good for watching movies but won't be versatile enough for more casual everyday use like commuting or sports.

Our Verdict

6.0 Mixed Usage

The Razer Man O' War are a good wireless gaming headset but they're not versatile enough for more casual uses. They have a decently balanced sound and low latency suitable for gaming and watching movies but won't be ideal for more critical listening. They're too bulky for sports and aren't practical for commuting.

Pros
  • Good sound quality.
  • Low latency for gaming and home theater.
  • Good active features and app support.
Cons
  • Bulky design.
  • Poor noise and leakage isolation.
  • Plasticky build quality.
  • Treble delivery varies significantly across users. Sensitive to positioning.
7.1 Neutral Sound

The Razer Man O' War are above-average for neutral listening. They have a decent amount of bass that packs a punch but also makes them sound a little boomy and muddy. This is especially noticeable since there's a slight dip in the higher frequency ranges that cause lead instruments and vocals to sound a little distant and lack a bit of clarity. They also don't have the best soundstage due to their closed design, but they should be okay for casual listening for most users.

5.5 Commute/Travel

The Razer Man O' War are below-average for commuting. They have to be within range of the USB transmitter, which limits their portability. They're also too bulky to carry around on your person without a bag, and they don't block enough noise to be suitable for the loud environments involved in commuting.

5.3 Sports/Fitness

The Razer Man O' War are below-average for sports. They're decently stable on the head thanks to their tight fit, but they're a bit too big and bulky for running and exercising. They also warm up your ears quite a bit after wearing them for a while.

6.1 Office

The Razer Man O' War are average for office use. They tend to put a bit of pressure on the ears which might get a bit uncomfortable during long listening sessions at work. They also let a lot of ambient chatter seep into your audio and are a bit leaky at higher volumes.

7.4 Wireless Gaming

The Razer Man O' War are above-average gaming headphone headphones. They have low latency, a well-balanced sound, and a good mic that filters a lot of noise. They also support the Razer Synapse app, which gives them quite a few customization options. Unfortunately, they're not the most comfortable headphones. They're tight on the head and make your ears warm after a couple of hours of gaming.

5.8 Wired Gaming

The Razer Man O' War aren't suitable for wireless gaming.

7.0 Phone Call
  • 6.0 Mixed Usage
  • 7.1 Neutral Sound
  • 5.5 Commute/Travel
  • 5.3 Sports/Fitness
  • 6.1 Office
  • 7.4 Wireless Gaming
  • 5.8 Wired Gaming
  • 7.0 Phone Call
  1. Update 11/21/2019: Converted to Test Bench 1.3.1.
  2. Update 11/21/2019: Converted to Test Bench 1.3.
  3. Update 2/16/2018: Converted to Test Bench 1.2.

Test Results

Design
Design
Style

The Razer Man O' War are a little bulky but look decently well-made. They're a mix of a matte and glossy finish to give a more high-end appeal to the overall build. The headband looks a bit futuristic thanks to the intricate padding design that looks good but won't be ideal for durability. The ear cups are dense, thick, and amply padded which further adds to the gaming aesthetic. We purchased the all-black variation, but they have a much flashier green if you want them to stand out a bit more.

7.0
Design
Comfort
Weight 0.8 lbs
Clamping Force
1.2 lbs

The Razer Man O' War are decently comfortable headphones with thick pads and large ear cups that fit well around most listeners' ears. However, they're a bit tight out-of-the-box. That and their relatively low breathability mean they won't be the most comfortable to wear during long gaming sessions.

6.1
Design
Controls
OS Compatibility
N/A
Ease Of Use Decent
Feedback Okay
Call/Music Control No
Volume Control Yes
Microphone Control Adjustable
Channel Mixing
No
Noise Cancelling Control N/A
Talk-Through
N/A
Additional Buttons

The Razer Man O' War have a mediocre control scheme when compared to more multi-purpose and casual use headphones. Their control scheme allows you to control the volume and microphone levels and that's pretty much it. While this is enough for most gaming applications, it still feels a little lacking. On the upside, the volume and microphone dials are easy-to-use and fairly responsive.

6.1
Design
Breathability
Avg.Temp.Difference 6.8 C

The Razer Man O' War make your ears fairly hot after wearing them for a while. They're a bit less breathable than typical closed-back over-ear design since they're a little tight on the head and have thick leather pads that block a lot of airflow. This means you may need to take a couple of breaks during long listening/gaming sessions and they won't be suitable for exercising or more high-intensity activities.

2.6
Design
Portability
L 7.9 "
W 7.5 "
H 4.2 "
Volume 242 Cu. Inches
Transmitter Required USB

The Razer Man O' War wireless headphones have limited portability since they need to be within the range of the USB transmitter for them to work. They're also fairly large and do not fold into a more compact format so they would be cumbersome to carry around even if they weren't limited by range. On the upside, the USB transmitter is easy to carry around with a dedicated slot on the right ear cup, which makes them somewhat more portable than headphones that require a big transmitter stand like some of the other gaming or the home theater models. If portability is important for you, you might want to opt for a hybrid base/Bluetooth model instead, like the Turtle Beach Elite 800 Wireless.

0
Design
Case
Type No case
L N/A
W N/A
H N/A
Volume N/A

These headphones don't come with a case.

6.5
Design
Build Quality

The Razer Man O' War's build quality is average. They're moderately sturdy but are primarily made out of plastic. The ear cups feel dense, and the plastic used in their build quality is decently high-grade. Unfortunately, the headband and joints aren't as durable. The headband is thin and somewhat hollow, which keeps the overall design relatively lightweight but isn't as flexible as some of the other headphones we've tested. The headband will break much easier than models with a reinforced metal frame. If you like the Razer brand but want something better-built, consider the Razer Nari Ultimate Wireless.

7.0
Design
Stability

These headphones are above-average stable thanks to their tight fit on most heads and their wireless design. They'll rarely slip off your ears during casual listening or gaming sessions. However, their bulky design means they won't be suitable to wear for more intense physical activities. They're not sports headphones and aren't designed for that use so they'll fall if you use them while running or working out.

Design
Headshots 1
Design
Headshots 2
Design
Top
Design
In The Box

  • Razer Man O' War headphones
  • USB charging cable
  • USB extension cord
  • Manual

Sound
Sound
Sound Profile
Bass Amount
1.17 db
Treble Amount
-2.22 db
6.2
Sound
Frequency Response Consistency
Avg. Std. Deviation
0.87 dB

The Razer Man O' War have a mediocre frequency response consistency. The bass delivery is quite good and consistent. However, there can be large variances in their high-frequency delivery across different users and positions, most likely due to their ear cup design.

Sound
Raw Frequency Response
7.4
Sound
Bass Accuracy
Std. Err.
3.67 dB
Low-Frequency Extension
18.61 Hz
Low-Bass
1.33 dB
Mid-Bass
4.1 dB
High-Bass
4.65 dB

The Razer Man O' War's bass is good. LFE (low-frequency extension) is at 18.61Hz, which is excellent. Also, low-bass, responsible for the thump and rumble common to bass-heavy music and video game effects is over our target by more than 1dB. However, mid-bass and high-bass are consistently over our target by more than 4dB, making the overall sound of these headphones boomy and muddy.

8.0
Sound
Mid Accuracy
Std. Err.
2.71 dB
Low-Mid
2.24 dB
Mid-Mid
-1.56 dB
High-Mid
-3.0 dB

The mid-range is very good. The response is virtually flat, but with a 10dB tilt favoring lower frequencies. This makes their mid-range bit cluttered and thick and pushes vocals/leads slightly to the back of the mix.

7.2
Sound
Treble Accuracy
Std. Err.
4.13 dB
Low-Treble
-4.66 dB
Mid-Treble
-0.81 dB
High-Treble
-1.72 dB

The treble performance is decent. Low-treble is flat and relatively even, underemphasized consistently by more than 4dB, negatively affecting the detail and articulation of vocals/leads. Mid-treble is also slightly lacking, but it won't be very noticeable. Also, their treble delivery varies noticeably across users. The response here represents the average response and your experience may vary.

7.3
Sound
Peaks/Dips
Peaks
1.81 db
Dips
1.16 db
8.1
Sound
Imaging
Weighted Group Delay
0.32
Weighted Amplitude Mismatch
0.32
Weighted Frequency Mismatch
2.48
Weighted Phase Mismatch
10.36

The Razer Man O' War's imaging performance is great. Weighted group delay is at 0.32, which is quite good. The GD graph also shows that the entire group delay response is below the audibility threshold. This ensures a tight bass and a transparent treble. Additionally, the L/R drivers of our test unit were well-matched in amplitude, frequency, and phase response. This is important for the accurate localization and placement of objects (voices, instruments, video game effects) in the stereo field.

6.3
Sound
Soundstage
PRTF Accuracy (Std. Dev.)
3.56 dB
PRTF Size (Avg.)
5.46 dB
PRTF Distance
11.86 dB
Openness
5.5
Acoustic Space Excitation
4.0

The Razer Man O' War have an average soundstage. The PRTF graph shows a good amount of activation and interaction with the pinna; however, the accuracy of the activation is low. Also, there's no notch present in the 10kHz area. This and the closed-back design suggest a soundstage that's located inside the listener's head, and not very speaker-like.

7.7
Sound
Weighted Harmonic Distortion
WHD @ 90
0.300
WHD @ 100
0.118
Isolation
4.4
Isolation
Noise Isolation
Isolation Audio
Overall Attenuation
-11.12 dB
Bass
0.59 dB
Mid
-6.2 dB
Treble
-28.16 dB

The isolation performance is sub-par. These over-ear headphones don't have active noise cancellation (ANC), and therefore don't isolate in the bass range. This means they'll let in all the rumble of airplane and bus engines. In the mid-range, important for blocking out speech, they reduce outside noise by 6dB, which is inadequate. In the treble range, occupied by sharp sounds like S and Ts, they achieve 28dB of isolation, which is above-average.

6.8
Isolation
Leakage
Leakage Audio
Overall Leakage @ 1ft
40.6 dB

The leakage performance is decent. The significant portion of the leakage is spread between 400Hz and 5kHz, which is a broad range. This makes the leakage relatively full sounding, compared to that of in-ears and earbuds. However, the overall level of leakage isn't very loud. With the music at 100dB SPL, the leakage at 1 foot away, averages at about 41dB SPL while peaking at 50dB SPL, which is about the same as the noise floor of most offices.

Microphone
Microphone
Microphone Style
Integrated
No
In-line
No
Boom
Yes
Detachable Boom
No

The Razer Man O' War have a good boom microphone. In quiet environments, speech recorded with this mic will sound full, clear, and easily understandable. However, it may lack a little bit in airiness and brilliance. In noisy environments, it does a good job of separating speech from background noise and would be suitable for most uses, even loud places like a subway station or gaming competition.

8.1
Microphone
Recording Quality
Recorded Speech
LFE
95.14 Hz
FR Std. Dev.
1.11 dB
HFE
6544.63 Hz
Weighted THD
1.466
Gain
27.23 dB

The Razer Man O' War's microphone has a good recording quality. LFE is at 95Hz, which is excellent; this results in a recorded or transmitted speech that sounds full-bodied. However, the HFE of 6.5kHz is slightly low, which means speech will lack some air and brilliance. The area between LFE and HFE is virtually flat flawless, resulting in a natural speech.

7.7
Microphone
Noise Handling
Speech + Pink Noise
Speech + Subway Noise
SpNR
25.63 dB

The Razer Man O' War's boom microphone's noise handling is good. It achieved a speech-to-noise ratio of 26dB in our SpNR test. This means it can fully separate speech from ambient noise to a good degree, even in loud environments.

Active Features
8.3
Active Features
Battery
Battery Type
Rechargable
Continuous Battery Life
23.5 hrs
Additional Charges
0
Total Battery Life
23.5 hrs
Charge Time
3.5 hrs
Power Saving Feature
Yes
Audio While Charging
Yes
Passive Playback
No
Charging Port micro-USB

The Razer Man O' War have a long battery life that should be more than enough for most gaming sessions. Unfortunately, they take quite a while to charge and while they have a decent auto-off feature, it's only when the transmitter is completely disconnected or without power. So if you leave your Xbox or PS4 on most of the time, they won't switch off.

8.5
Active Features
App Support
App Name Razer Synapse
iOS N/A
Android N/A
macOS Yes
Windows Yes
Equalizer
Graphic + Presets
ANC Control
N/A
Mic Control Frequency Response
Room effects
No
Playback Control
No
Button Mapping No
Surround Sound Dolby 7.1

Razer Synapse delivers a good suite of features with the Razer Man O' War headset. They have a great graphic equalizer with presets. They offer a good amount of control over the mic from clarity options to mic sensitivity levels. You can even change the color of the headphone lights. An auto-off timer would have been a great addition to the Razer Synapse software but overall it's efficient, easy-to-use, and offers a lot of customization options.

Connectivity
0
Connectivity
Bluetooth
Bluetooth Version
N/A
Multi-Device Pairing
N/A
NFC Pairing
N/A
Line of Sight Range
N/A
Default Latency
N/A
aptX Latency
N/A
aptX(LL) Latency
N/A

The Razer Man O' War aren't Bluetooth compatible. If you want a gaming headset with Bluetooth support, check out the Turtle Beach Stealth 700 Wireless.

The Razer Man O' War only have 52ms of latency. This makes them a suitable option for gaming and even watching movies, as 50ms and below is barely noticeable for most users.

7.9
Connectivity
Non-Bluetooth Wireless
Non-BT Line of Sight Range
104 ft
Non-BT Latency
52 ms
5.0
Connectivity
Wired
Analog Audio
N/A
USB Audio
N/A
Detachable Yes
Length 6.7 ft
Connection USB
Wired Latency
N/A

These headphones don't come with an audio cable that you can use with your console controllers, unlike some other gaming headsets like the SteelSeries Arctis 7 Wireless 2017. They also won't be compatible with mobile devices.

Connectivity
PC / PS4 Compatibility
PC / PS4 Analog
No
PC / PS4 Wired USB
No
PC / PS4 Non-BT Wireless
Audio + Microphone
Connectivity
Xbox One Compatibility
Xbox One Analog
No
Xbox One Wired USB
No
Xbox One Wireless
No
3.4
Connectivity
Base/Dock
Type
Wireless USB Dongle
USB Input
Yes
Line In
No
Line Out
No
Optical Input
No
RCA Input
No
Dock Charging
No
Power Supply
USB

The Razer Man O' War come with a USB dongle that has no additional input options. The dongle is compatible with PCs and the PS4, but not the Xbox One.

Compared To Other Headphones

Comparison picture

The Razer Man O' War are a decent sounding headset with a customizable sound and a great mic. They're comfortable, although they tend to be a bit tight on the head and aren't the most breathable headset. They also have a good battery life with a decent wireless range and low latency for gaming and watching movies. Unfortunately, their build quality isn't as good as some cheaper options and they don't have as many connection options, so they won't be the best headset for gaming on your consoles.

Razer Nari Ultimate Wireless

The Razer Nari Ultimate are better gaming headphones than the Razer Man O’ War Wireless. The Nari Ultimate are more comfortable and have significantly better build quality. They have a better wireless range and less latency, and can also be used wired with the Xbox One. However, the Man O’ War have a much better microphone and battery life. They also have a more stable fit and are less likely to slip off your head while gaming.

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