The segment of affordable computer peripherals for home and office usually does not impress with new technologies; however, this is where users expect maximum versatility and convenience.
The A4Tech FB50C Plus and FB50CS Plus models fit this description perfectly. They are compact wireless mice that support two types of connections — Bluetooth and 2.4 GHz via the included receiver. One of the versions (FB50CS Plus) also features silent switches, making it particularly interesting for office use.
Source: TechnoGuide
Let's take a closer look at what these models have to offer and how they differ from each other.

Package and Positioning
Both mice are delivered in compact, informative boxes that highlight key features — dual connectivity, compact dimensions, and a focus on mobile use. The manufacturer clearly positions these models as solutions for laptops, learning, and everyday work outside of a desktop workstation.

The package includes the mouse itself, a nano-receiver for connection via 2.4 GHz, a charging cable, and basic documentation. The receiver is small — it is convenient to keep in the USB port of a laptop or store inside the mouse body during transportation.


Specifications of A4Tech FB50C Plus and FB50CS Plus
- Connection: Bluetooth/2.4 GHz, up to 3 devices (Bluetooth x2, 2.4 GHz x1)
- Sensor: optical
- Operating range: 5~10 m
- Buttons: 7 pcs.
- Polling rate: 125 Hz
- Resolution: 1000-1200-1600-2000 DPI
- Battery: lithium battery
- Charging time: about 2 hours
- Charging cable: 60 cm
- Weight: 79 g
- Dimensions: 63 x 120 x 36 mm
- System: Windows / Mac / Chrome OS / Android
- Official website: a4tech.ua
Design and Ergonomics
The FB50C Plus and FB50CS Plus have the same shape. They are symmetrical compacts with a relatively low profile, suitable for fingertip or claw grip. Due to their small size, they are designed for mobile use and work well with laptops. Users with larger hands may find the mice small for extended use; however, during travel or in confined spaces, compactness becomes an advantage.

The body material is made of matte plastic with a pleasant texture. The surface is not slippery, does not collect fingerprints, and is well-suited for daily use. The FB50C Plus in our review is presented in light shades, including white and pink, giving it a stylish appearance. This design will look organic alongside slim ultrabooks or bright workspaces. The FB50CS Plus, on the other hand, comes in classic black, making it suitable for office or business environments.


Dual Connectivity and Working with Multiple Devices
The key feature of both models is the support for two wireless interfaces. The mouse can be connected through the included 2.4 GHz receiver or via Bluetooth. Switching between modes is facilitated by a button on the bottom of the body.

Thanks to this, the mice can be used with multiple devices. For example, one 2.4 GHz channel can be connected to a desktop PC, and Bluetooth — to a laptop or tablet. In total, connection of three devices simultaneously is possible: one via radio channel and two via Bluetooth. For users who work in a hybrid mode between different gadgets, this significantly eases everyday interaction with technology.

The quality of the connection in both modes is stable. The connection via the receiver provides excellent cursor performance without delays. Bluetooth has a slight latency, but in regular office tasks, this is virtually unnoticeable.
Sensor and Functional Capabilities
Both models are equipped with an optical sensor with a maximum sensitivity of 3200 DPI. Five levels of sensitivity adjustment are offered, which can be switched via a button on the body. There is also a separate quick double-click button, which can be convenient when working with files or during navigation.



The models are not positioned as gaming mice, but they are quite suitable for simple games. Their main area of use is working with documents, browsers, emails, spreadsheets, and other daily tasks.

Main Difference: Click Sound
The key difference between the FB50C Plus and FB50CS Plus lies in the type of switches. The FB50C Plus uses classic micro-switches with an audible click. This option is suitable for home use or individual work.

The FB50CS Plus is equipped with silent switches. The sound of clicking here is significantly muted, almost imperceptible to those around. At the same time, tactile feedback is preserved, and the user feels the moment of activation. This makes the model particularly suitable for open offices, libraries, classrooms, or nighttime use.
Autonomy
Both models are powered by a built-in battery and charge via a cable. The absence of lighting and energy-consuming functions positively affects the duration of operation. In normal daily mode, the mice are capable of working for several days or even more than a week without a recharge, depending on the intensity of use.


Overall Impressions
The A4Tech FB50C Plus and FB50CS Plus create a positive impression as versatile wireless mice for everyday use. They are compact, lightweight, connect quickly, work stably in two wireless modes, and do not require acclimatization. The ability to work with multiple devices makes them convenient companions for a laptop at home, in the office, or while traveling.

The FB50C Plus will be a great choice for those who need an affordable mobile mouse with a classic click and bright design options. The FB50CS Plus will be the better choice for those who value silence while working and often operate in environments where annoying noise would be problematic. Both models demonstrate that affordable peripherals can be modern, functional, and comfortable in real-world usage scenarios.