The A4Tech FB45CS Air2 from the Fstyler series is a versatile wireless mouse designed to streamline your workflow across multiple platforms. It offers dual-mode connectivity, allowing you to pair with up to three devices simultaneously using either a 2.4GHz receiver or Bluetooth, which makes it a practical choice for those switching between a laptop, tablet, and smartphone. You can tailor the tracking precision to your needs with four adjustable DPI levels ranging from 1000 to 2000, while the silent clicks ensure your work doesn't disturb others in a quiet office or home environment. One of its most distinctive features is the Air Mouse function, which lets you toggle between desk mode for traditional navigation and air mode for controlling multimedia from a distance. For Windows users, the mouse includes a dedicated screen capture tool for taking rectangular, free-form, or full-screen snips. It also features an anti-sleep mode in 2.4GHz connectivity that simulates cursor movement to keep your system active. The device is powered by a rechargeable battery via USB Type-C and measures 10.8x7x4.2 cm, fitting comfortably in your hand. The package comes complete with a nano USB A receiver and a USB C adaptor to ensure compatibility with modern ports on Windows, Mac, Chrome OS, and Android devices.