The A4Tech FB20S is a dual-mode wireless mouse from the F-Style collection, built for anyone who moves between more than one device during the day. It pairs over Bluetooth or the bundled 2.4GHz nano receiver, switches between up to three connected devices, and uses silent-click buttons rated for 5 million presses so you can work without the usual mouse-click noise. It runs on two AAA batteries with an on/off switch to help them last longer between changes. This listing is for the Smoky Grey variant.
Features
Dual Connectivity Mode (Bluetooth + 2.4GHz)
Pair the FB20S over Bluetooth for a receiver-free setup, or use the included 2.4GHz nano receiver for a fast, stable connection. Auto-channel sorting keeps the 2.4GHz link steady even with other wireless devices nearby.
Switch Between Up to 3 Devices
Connect one device over the 2.4GHz nano receiver and two more over Bluetooth, then jump between all three using the switch button on the bottom of the mouse. Handy if you split your day between a work laptop, a personal laptop, and a tablet.
2000 DPI, 3-Level Adjustable Sensitivity
Cycle through three DPI presets, 1200, 1600, and 2000, using the button on top of the mouse. Lower settings suit precise document work, while 2000 DPI is fast enough for everyday browsing and spreadsheet work.
16-in-1 Gesture Support
Install A4Tech’s free driver and assign gesture-based shortcuts, like copy, paste, switch windows, or open a specific app, to the mouse’s buttons through the included software.
On/Off Power Switch
A physical switch on the underside cuts power completely when the mouse is not in use, which helps the two AAA batteries last longer between changes instead of draining in standby.
Silent Clicks (Model No.: FB20S)
The left and right buttons use a silent-click switch rated for 5 million presses, so you can work in a quiet office, a shared room, or late at night without the usual mouse-click noise.
More Reasons to Like It
Wider Scroll Wheel
The FB20S uses a wider scroll wheel than earlier F-Style mice, so it’s easier to scroll through long documents and web pages with more control under your finger.
Symmetric, Ambidextrous Shape
The body is shaped to sit comfortably in either hand, with a compact 113 x 57 x 26mm footprint that’s easy to slip into a bag alongside a laptop.
AAA Battery Powered
Two AAA batteries are included in the box, so you can swap in fresh ones anywhere instead of waiting around for a recharge.
Light at 60 Grams
At 60g, the FB20S is light enough for all-day use without adding noticeable weight to your hand or your bag.
Specs & Details
| Connection | Bluetooth / 2.4GHz, up to 3 devices (2x Bluetooth, 1x 2.4GHz) |
| Sensor Type | Optical |
| Operating Distance | 5 to 10 meters |
| Buttons | 4 |
| Report Rate | 125 Hz |
| DPI | 1200 / 1600 / 2000 (adjustable) |
| Battery | 2 x AAA batteries (included) |
| Style | Symmetric, ambidextrous |
| Receiver | 2.4GHz nano receiver |
| Dimensions | 113 (L) x 57 (W) x 26 (H) mm |
| Weight | 60 g |
| Compatible Systems | Windows, macOS, Chrome OS, Android |
| Color | Smoky Grey |
| What’s in the Box | FB20S mouse, 2.4GHz nano receiver, 2 x AAA batteries |
Downloads
Need the driver for the 16-in-1 gesture software, or the printed manual? Grab both directly from A4Tech’s official site:
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