Keychron

BM25

Silent wireless office mouse

Quiet on every button, 79 grams, up to 98 hours from a 600 mAh cell, with the receiver stored under the top cover.

  • 1000 Hz
  • 2400 DPI
  • PAW3212
  • 2.4 GHz
  • Bluetooth 5.2
  • USB-C
  • 79 g
Keychron BM25

At a glance

Quiet on every button

Silent Huano switches under all of them — the click stays in your hand, not in the room.

Three ways in

2.4 GHz at 1000 Hz, Bluetooth 5.2, or the USB-C cable.

Up to 98 hours

A 600 mAh cell — a working month between charges for most desks.

79 grams

Light, curved, textured on both flanks, and shaped for a right hand.

A mouse you can use on a call

Every button on the BM25 is a silent Huano micro switch. The press still has a definite edge under the finger — what is missing is the noise, which is the part that carries across an open office, into a microphone, or through a wall at half past eleven at night.

Keychron BM25 from above

PAW3212, and why that is the right sensor here

The BM25 is not aimed at a gaming bench and does not pretend to be. The PAW3212 gives 100 to 2400 DPI and up to 30 IPS — steady, undramatic tracking for documents, spreadsheets and browsers, and it is frugal enough that the battery figure is measured in weeks rather than days.

Keychron BM25 from the side

The receiver lives in the mouse

A Type-A 2.4 GHz receiver is supplied, and when it is not in a port it clips into a magnetic slot under the top cover — lift the cover from the tail and it is there. That is the difference between a mouse that travels and a mouse that loses its receiver in a bag.

2.4 GHz receiver stored in the Keychron BM25

600 mAh, up to 98 hours

Ninety-eight hours of continuous use is a figure most desks turn into a month or more, because a mouse spends most of the working day standing still. It charges over USB-C and keeps working while it does.

600 mAh battery

DPI on a button

One press of the button on the shell steps the sensitivity — no software, no menu. Everything else that can be changed is changed in the Launcher.

DPI button on the Keychron BM25

Programmed in a browser tab

Keychron Launcher is a web page, not an installer. With the mouse on the cable or the 2.4 GHz receiver, open it in Chrome, Edge or Opera, remap the buttons, record macros, set DPI steps and polling rate, and write it to one of five profiles stored in the mouse. It works the same on Windows, macOS and Linux, and there is nothing to keep updated.

Keychron Launcher web app

Made to sit next to a quiet keyboard

Keychron pairs the BM25 with its wireless office boards — the tenkeyless B33, and the full-size B36, which we also distribute. Same silence, same receiver in a magnetic slot, one desk.

In detail

Specification

Sensor and buttons

Sensor
PAW3212
DPI range
100 – 2400
Tracking speed
Up to 30 IPS
Lift-off distance
Not adjustable
Switches
Huano micro switch, rated 10 million clicks
Controller
Telink TLSR8258
Software
Keychron Launcher web app, five on-board profiles

Connectivity and power

Connection
2.4 GHz / Bluetooth / USB-C
Bluetooth
5.2
Polling rate
1000 Hz on 2.4 GHz and wired, 125 Hz on Bluetooth
Battery
600 mAh lithium-polymer
Battery life
Up to 98 h
Operating systems
Windows, macOS, Linux

Physical

Weight
79 ± 3 g
Handedness
Right-handed shape
Frame
ABS with a textured grip
Mouse feet
PTFE
Finishes
Space Gray, Black
Cable
Detachable USB-C

Figures published by the manufacturer. Battery life is a laboratory result and varies with use.

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