The Xiaomi Dual-mode Wireless Mouse 2 Black (BHR8850GL) is compact, lightweight, and designed for daily work, office use, light gaming, and mobile usage. You get wireless freedom with 2.4 GHz Nano USB and Bluetooth Low Energy in one body, making it easy to switch between a laptop, desktop, or even multiple devices. The weight is under 70 grams, making it comfortable for long hours in front of the screen and for carrying in a backpack. The design is symmetrical, suitable for both left and right hands.

What you get: an optical sensor that performs stably on typical office surfaces, plus a reliable wireless connection via the 2.4 GHz USB nano receiver XMJSQ01 or directly via Bluetooth to the laptop. Dual-mode operation allows you to connect, for example, your PC on 2.4 GHz and your laptop on Bluetooth, and switch between them without removing and moving the receiver. TTC silent buttons (silent click) are perfect for shared offices, night work, or online meetings where you don't want to hear constant clicking. Low-friction PTFE feet help with smooth movement even on cheaper mousepads, and the built-in compartment for the USB receiver in the battery cover reduces the chance of losing it.

The mouse is optical, ensuring stable tracking for office work, internet browsing, and daily tasks.
You have dual wireless connectivity – 2.4 GHz and Bluetooth Low Energy, so you can use the mouse with multiple devices without constant re-pairing.
The package includes a 2.4 GHz USB nano receiver XMJSQ01, which fits into a special compartment in the body to prevent loss during transport.
With a total of 5 buttons, including two side buttons (forward/back), navigation in browsers, documents, and file managers becomes noticeably faster.
The main buttons feature a TTC silent click mechanism, which significantly reduces noise when clicking and is convenient in quiet environments.
The scroll wheel has a rubber surface, providing better control when scrolling through long pages and tables.
Low-friction PTFE (Teflon) feet ensure smooth and light gliding on most mousepads and desks.
The body is made of plastic and metal in a classic black color, with dimensions of 111 × 64 × 40 mm and a weight of about 62 g, making it compact and convenient to carry.
Works with Windows 7 or newer and macOS 10.13 or newer, covering most modern laptops and desktop machines.
It has an LED indicator for status and low battery level, so you know in advance when it's time to replace the battery.

Who it is suitable for: if you need a light, quiet, and universal mouse for office, study, working from home, or frequent switching between laptop and desktop – this is a good fit. It is also suitable for left-handed users, thanks to the symmetrical shape. If you are looking for a strictly gaming mouse with an aggressive grip and a specialized gaming sensor, you might miss the typical “gaming” extras here.

The combination of dual-mode connectivity, silent buttons, low weight, and practical details like the receiver compartment and PTFE feet makes it a very sensible choice for a daily driver that simply gets the job done without unnecessary complications.