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Cooler Master MM731 Mouse Review: Wireless With More To Love

Cooler Master MM731 Review

The Cooler Master MM731 was launched alongside its wired sibling, the MM730. Available in black and white colour variants, the Cooler Master MM731 is a lightweight gaming mouse that weighs less than 59g. Additionally, it comes with wired connectivity and not just one, but two wireless modes – 2.4GHz wireless and Bluetooth 5.1. I’ve reviewed the MM730, and I loved it. Ditch the cables, and here we are, we’re going wireless on an already fantastic mouse.

Cooler Master MM731 Mouse Review: Wireless With More To Love

Cooler Master MM731 Gaming Mouse – Specs

Product NumberBlack: MM-731-KKOH1
White: MM-731-WWOH1
Mouse Grip TypePalm, Claw
Mouse MaterialABS Plastic, Rubber, PTFE
Mouse ColorBlack, White
Mouse LED Color16.7 Million RGB
Mouse SensorPixArt Optical Sensor
CPI / DPI400-800-1200(Default)-1600-3200-8000-19000
Mouse Tracking Speed400 ips
Mouse Lift Off Distance< ~2mm / Adjustable
Mouse Polling Rate2.4GHz/Wired Mode: 1000 Hz, BT Mode: 125 Hz
Angle SnappingYes
Mouse Acceleration50g
Mouse Lifespan(L/R switches)
Optical Switches, 70 Million
Mouse Buttons6
ConnectivityWired, 2.4 GHz, Bluetooth 5.1
Battery Capacity500mAh
Battery Life190hrs (BT mode) (with LED Off) / 72hrs (2.4G mode) (with LED Off)
ChargingSupport Wired charging
Compatible OSWindows 8+, macOS
SoftwareYes, Cooler Master MasterPlus+ Support
Mouse CableDetachable Ultraweave Cable, 1.8 M (Type-C to Type-A) with Gold-plated
Dimensions(L x W x H) 122.3 x 69.0 x 39.1mm
WeightMouse: 59g / 0.13lbs (w/o Dongle & Cable)
Warranty2 years


Cooler Master MM731 Mouse Review: Wireless With More To Love

The Cooler Master MM731 isn’t just a standard wireless mouse, it’s a lightweight gaming mouse that’s tuned to be for gaming and of course, it supports further tweaks and customization. With what software? Cooler Master’s very own MasterPlus+ (still think that’s too repetitive of a name). As soon as you plug it in and switch it on, you’d be prompted to perform a firmware update immediately to get you up to speed on the latest fixes and features the mouse has to offer.

I find this super useful because it’s automated, I don’t need to remember to check for updates manually in the future. Best part is, you don’t even need to connect the cable for the update. All you need is the 2.4GHz dongle, and you’re ready to update.

Apart from firmware updates, the MasterPlus+ software also allows you to configure each individual buttons, macros, profiles, angle snapping, lift-off distance, RGB lighting, and more. It’s easy to use, straightforward, and nothing I can complain about really.

Using The Mouse

Cooler Master MM731 Mouse Review: Wireless With More To Love

Using the Cooler Master MM731 for a good 2 months, the Cooler Master MM731 gives the familiar experience I’ve loved from the MM730, but deletes the need for a wired cable entirely. To be honest, after unboxing the mouse, I didn’t even bother unwinding the included detachable ultraweave cable. I plugged in the 2.4GHz dongle and went straight into wireless mode, and fell twice as hard in love with the mouse.

The Cooler Master MM731 is also the first mouse that has made it into my everyday carry-on messenger bag, solely because it has Bluetooth connectivity as well. I’ve had Bluetooth mouse before but none of them were this light, so none of them were worthy to being carried around with me. Equipped with a PixArt PAW3370 sensor, the mouse can go up to 19,000 DPI, which is insane. I personally don’t go that high, but for those who do, you’ll appreciate it more.

Cooler Master MM731 Mouse Review: Wireless With More To Love

When I need to work on-the-go, the mouse with a flick of the switch, the Cooler Master MM731 works in tandem with my Apple iPad Air 5th Gen perfectly. The built-in DPI toggle button on the bottom of the mouse also makes it very convenient to switch DPIs between different devices. On PC, I’d use a higher DPI as I’m on a 34-inch ultrawide monitor, whereas on the iPad, I’ll go lower.

Cooler Master MM731 Mouse Review: Wireless With More To Love

In terms of grip, it fits my claw grip just nicely and the mouse has enough length for it to fit palm grip users too. However, the mouse isn’t ambidextrous, so it’s more fitted for right handed users. The matte finish gives it a good grip, and the PTFE feet allows it glide ever so smoothly on my mousepad. Doesn’t matter what game I’m playing, I’ve never felt any kind of drag. Other than that, buttons are responsive and the clicks sound just nice and not at all obnoxiously loud like some other mice I’ve reviewed.

Cooler Master MM731 Mouse Review: Wireless With More To Love

Taking a look at the bottom of the mouse, it’s simplicity at its finest. You’ll find the connectivity mode toggle, an LED indicator, and a DPI toggle button. With a few flicks of the switch, you can swap between Bluetooth, 2.4GHz wireless, and wired mode. The DPI toggle button lets you shuffle between DPIs and the LED indicator changes colour from green to yellow, and red to let you know which level DPI you’re on. Simple and easy approach, no manual needed to understand them.

What I Don’t Like

Cooler Master MM731 Mouse Review: Wireless With More To Love

I have a lot to love about the Cooler Master MM731, and I’d go as far as saying it’s the perfect mouse for me. But if there are things I’d nitpick about it, is that the connectivity mode toggle is a bit too small. I would’ve preferred it to maybe be a little bigger to make it easier to control. Either that, or maybe my fingers are just fat.

Another thing Cooler Master could’ve done better on is the scroll wheel. It could’ve had the tilt function to go front/back in Windows, that would’ve made the mouse perfect, perfect.

Battery Life

Cooler Master MM731 Mouse Review: Wireless With More To Love

For such a lightweight mouse at 59g (10g heavier than the MM730’s weight of 49g), it’s still able to pack in a 500mAh battery. According to Cooler Master, it’s capable of 190 hours of usage in Bluetooth with the RGB off, and up to 72 hours of usage in 2.4GHz wireless mode with the RGB off. Of course, with the RGB on, it would take up a bit more power. But, with the software, you can set for it turn off the lighting after idling for a certain amount of time, saving you battery life.

During my testing, I’ve gone full-time on 2.4GHz wireless mode with the RGB lights on at 50%, and I’ve managed to go up to 2 weeks+ on a single charge. I’ve also mixed in some Bluetooth mode in there somewhere, but this mouse is definitely a marathoner!


Cooler Master MM731 Mouse Review: Wireless With More To Love

The Cooler Master MM731 has a lot to offer for its asking price of RM239. From wired and wireless connectivity, to its lightweight chassis, and its range of customization with the Cooler Master MasterPlus+ software. For RGB lovers, the mouse also has the Cooler Master logo lit up in 16 million colours for you to choose from. If the abovementioned features are something you’re looking for in a gaming mouse, then the Cooler Master MM731 is for you – no doubt about it.

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Cooler Master MM731 Mouse Review: Wireless With More To Love 9
Written By

Chief Content Developer at The AXO

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