UGREEN Multi-Mode Vertical Mouse — Black (MU008)

The UGREEN Multi-Mode Vertical Mouse is an ergonomic wireless pointing device designed to reduce wrist and forearm strain during extended desk work. Its 57° vertical orientation positions the hand in a natural handshake-like posture, moving the wrist away from the flat, pronated angle associated with repetitive strain injuries and conditions such as carpal tunnel syndrome. It connects to up to three devices simultaneously via Bluetooth 5.0 and 2.4 GHz wireless, making it a practical option for users who regularly switch between a desktop, laptop, or tablet.

Ergonomic Design and Wrist Posture

Standard flat mice require the forearm to rotate so the palm faces downward — a position that places sustained load on the forearm tendons and wrist joints over the course of a working day. The MU008’s 57° vertical angle counters this by allowing the forearm to rest in a more neutral, semi-vertical orientation. This design principle is well established in ergonomic research and is the same approach used in vertical mice from Logitech’s MX Vertical range, though the MU008 offers a larger overall footprint that accommodates medium to large hand sizes more comfortably. A dedicated Windows/macOS toggle on the underside of the mouse adjusts the function of the two side buttons to suit the active operating system — browser forward/back on Windows, and application switching (Command+]/[) on macOS.

Connectivity and Multi-Device Switching

The MU008 supports three simultaneous device connections: one via the included 2.4 GHz USB nano-receiver and two via Bluetooth 5.0. A dedicated device switch button on the base cycles through the three paired channels, with LED indicators confirming the active connection. This setup allows the mouse to remain paired with, for example, a Windows desktop on channel 1 and a MacBook on channel 2, without re-pairing when switching between them. The wireless range extends to 10 metres in an unobstructed environment, sufficient for standard desk setups and informal presentation use.

Silent Clicks and Optical Tracking

The MU008 uses low-noise click mechanisms that operate quietly during normal office use. This makes it suitable for open-plan offices, shared workspaces, and meeting environments where click noise from standard mice would otherwise carry. The optical sensor supports four selectable DPI levels — 1000, 1600, 2000, and 4000 — covering precise low-speed work such as image editing or document annotation at the lower end, and fast multi-monitor navigation at the higher end. An intelligent sleep mode activates automatically during periods of inactivity, conserving battery life without requiring manual power management.

Power and Battery

The MU008 runs on a single AA alkaline battery rather than a built-in rechargeable cell. This approach means battery replacement takes seconds with a widely available standard battery, rather than requiring a charging cable and downtime. An intelligent sleep mode further extends battery life during inactive periods. This is worth noting if you are comparing the MU008 with the UGREEN FUN+ MU102, which uses a built-in 500 mAh USB-C rechargeable battery — the MU008’s AA design is preferable for users who prioritise quick battery swaps over rechargeable convenience.

Technical Specifications

Source: UGREEN official product page and FCC-registered user manual (FCC ID: 2AQI5-MU008).

Use Cases

The MU008 is particularly well suited to office professionals who log long daily hours at a mouse-intensive workstation — document review, data entry, CAD navigation, or spreadsheet work where the forearm remains in a fixed position for extended periods. The vertical orientation addresses the sustained strain that flat mice impose in these workflows.

Creative professionals including graphic designers and photo editors benefit from the adjustable DPI range, which allows the mouse to shift between high-precision cursor work at 1000 DPI and faster navigation at 4000 DPI without leaving the application. Additionally, the silent click mechanism is a practical advantage for designers who frequently work in client-facing or open office environments.

Multi-device users — including those managing a desktop and a laptop simultaneously, or those who transition between a personal and a work machine — will find the three-channel switching system reduces friction in their daily workflow. Furthermore, the macOS mode toggle makes the MU008 a genuinely cross-platform tool rather than a mouse that merely tolerates macOS.

For users new to vertical mice, it is worth noting that a short adjustment period of several days is normal as the hand adapts to the new grip orientation. UGREEN acknowledges this in their official product documentation, and most users report that discomfort resolves within a week of regular use.