Wireless optical mouse A4Tech FM12S Black — 1200 DPI, RF nano receiver, 3 buttons, AA battery

A4Tech FM12S Black is a wireless optical mouse with a compact ergonomic shape designed for everyday office and home use. It offers 1200 DPI movement resolution, a three-button layout with a scroll wheel, and an RF nano receiver included for plug-and-play connection to compatible systems such as Windows 10.

Advantages

The mouse provides a wireless range up to 15 m using an RF nano receiver and runs on a single AA alkaline battery for simple power replacement. Its optical sensor with 1200 DPI delivers reliable cursor control for standard productivity tasks, while the ergonomic design and three pressed buttons with a vertical scroll wheel support comfortable, straightforward operation. A 125 Hz polling rate ensures responsive tracking for everyday use.

Suitable for

• Office work and general home computing
• Web browsing and document editing
• Portable setups and laptop use thanks to the nano receiver

Key specifications

• Movement detection: Optical, 1200 DPI
• Buttons: 3 pressed buttons; 1 scroll wheel (vertical)
• Wireless interface: RF Wireless with nano receiver included
• Power source: 1 × AA alkaline battery
• Maximum wireless range: up to 15 m
• Polling rate: 125 Hz
• Physical dimensions (H×W×D): 42 mm × 70 mm × 105 mm
• Colour: Black
• Operating system compatibility: Windows 10

How to use

Insert a single AA alkaline battery into the mouse, plug the included RF nano receiver into a free USB port on your computer and allow the operating system to automatically detect the device. Place the mouse on a flat surface and use left, right and middle (scroll-wheel) buttons along with the vertical scroll wheel for navigation. No additional drivers are required for basic functionality on supported systems such as Windows 10.

Recommendations

For reliable wireless performance, keep the nano receiver within line of sight of the mouse when possible and replace the battery promptly when cursor responsiveness decreases. Use on a non-reflective, flat surface for optimal optical tracking.