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A4Tech FG16C Air / FG16CS Air specifications and in-depth review

A4Tech FG16C Air / FG16CS Air

Manufacturer: A4Tech

The A4Tech FG16C Air and FG16CS Air are wireless mice designed to serve both productivity and gaming use cases, offering an ambidextrous form factor that accommodates a wide range of users. Built around a 2.4GHz wireless connection, the mouse keeps things straightforward with a compact body and a rechargeable battery rated for up to 8760 hours, making it a low-maintenance option for everyday use. It also supports use while charging, so workflow interruptions are kept to a minimum.

On the technical side, the sensor delivers a maximum of 2000 DPI with a minimum of 1000 DPI, and DPI switching is handled through a dedicated button among its four fully programmable buttons. The mouse has no side buttons and lacks onboard memory profiles, but it does include gesture support. Physically, it measures 109 mm in height, 64 mm in width, and 36 mm in thickness, with a total weight of 73 g. A 1.5 m cable is included, and the design omits RGB lighting, extra weights, and tilting or thumb scroll wheels.

Pros
  • Ambidextrous design makes it usable for both left- and right-handed users
  • All 4 buttons are programmable, offering full input customization
  • Exceptionally long battery life rated at 8760 hours on a rechargeable cell
  • Can be used while charging, avoiding any forced downtime
  • Gesture support adds an extra layer of interaction for productivity tasks
  • Lightweight at 73 g, keeping the mouse easy to handle during extended sessions
Cons
  • DPI range is limited to 1000–2000, which may not satisfy users who need finer sensitivity control
  • Polling rate of only 125 Hz provides less responsiveness compared to higher-refresh input devices
  • No side buttons, which limits quick-access shortcuts
  • No onboard memory profiles, so custom configurations cannot be stored on the device itself
  • Battery is not removable, making replacement or emergency swaps impossible
  • No tilting or thumb scroll wheel, restricting navigation options for certain workflows
Who is this for?

This mouse is a solid fit for users who need a reliable wireless input device for everyday productivity and casual gaming, particularly those who switch between left and right hands or share workstations, thanks to its ambidextrous shape. The exceptionally long battery life of 8760 hours combined with the ability to use the mouse while charging makes it well-suited for office environments where consistent uptime matters. Its gesture support and fully programmable buttons also make it appealing to users who rely on customizable workflows without needing complex multi-profile setups.

Who is this NOT for?

Users engaged in competitive or fast-paced gaming will likely find the 125 Hz polling rate and 2000 DPI ceiling insufficient for the precision and responsiveness those scenarios demand. The absence of side buttons and onboard memory profiles makes it a poor match for power users who depend on quick-access shortcuts or portable configuration storage across multiple devices. Additionally, those who require advanced scroll wheel controls — such as horizontal scrolling via a tilting wheel — will find the design limiting for complex navigation tasks in creative or data-heavy applications.

Performance:

polling rate 125 Hz
maximum DPI 2000 DPI
minimum DPI 1000 DPI
has adjustable DPI ✓

The performance section of this mouse centers on a polling rate of 125 Hz and an adjustable DPI range that runs from a minimum of 1000 DPI up to a maximum of 2000 DPI. The adjustable DPI support allows users to switch sensitivity levels to suit different tasks, though the overall range stays within modest bounds suited to general and light gaming use.

General info:

Type Productivity, Gaming
connection type 2.4GHz wireless
sensor Optical Sensor
onboard memory profiles 0
has gesture support ✓
Battery life 8760 hours
can use while charging ✓
has a rechargeable battery ✓
has a removable battery ✕

This mouse is categorized for both productivity and gaming use, connecting via 2.4GHz wireless and relying on an optical sensor for tracking. It carries a rechargeable battery rated at 8760 hours, and the battery is not removable, though the mouse can be used while it is charging. Gesture support is included, while onboard memory profiles are absent, meaning no configurations are stored directly on the device. The battery cannot be swapped out by the user.

Buttons:

number of buttons 4
number of side buttons 0
number of programmable buttons 4
has a DPI switching button ✓
has a profile switching button ✕

The mouse features 4 buttons in total, all of which are programmable, giving users full control over every input on the device. There are no side buttons present, keeping the layout minimal. A dedicated DPI switching button is included for on-the-fly sensitivity adjustments, while a profile switching button is not part of the design.

Design:

Orientation Ambidextrous
weight 73 g
has RGB lighting ✕
has a tilting scroll wheel ✕
has a thumb scroll wheel ✕
has extra weights ✕
cable length 1.5 m
volume 251.136 cm³
thickness 36 mm
height 109 mm
width 64 mm

The mouse uses an ambidextrous orientation, making it suitable for both left- and right-handed users, and weighs 73 g with a volume of 251.136 cm³. Its physical dimensions sit at 109 mm in height, 64 mm in width, and 36 mm in thickness, with a 1.5 m cable included. The design does not incorporate RGB lighting, extra weights, a tilting scroll wheel, or a thumb scroll wheel, reflecting a clean and straightforward build.

Final Verdict

The A4Tech FG16C Air / FG16CS Air is a focused wireless mouse that delivers well where it counts for its intended audience — casual users and those with light gaming needs who value convenience and longevity above raw performance. Its ambidextrous design paired with an 8760-hour rechargeable battery makes it a genuinely practical choice for users who prioritize uninterrupted daily use without fuss. That said, its modest DPI ceiling, limited polling rate, and stripped-back button layout signal that this is not a device built for demanding or precision-heavy tasks. For users seeking a no-frills, dependable wireless mouse for productivity-oriented environments, the FG16C Air / FG16CS Air presents a coherent and purposeful package.