Pocket-friendly sized and totally portable, the Lenovo 400 USB-C Wired Compact Mouse is designed for those who live life on the go. No batteries required, simply plug in the USB-C cable, and you're ready to scroll and click away - it's plug-and-play, so there's nothing to download or install. Featuring an advanced red optical sensor and up to 2400 on-the-fly DPI adjustment, precision and accuracy is guaranteed whether you are working on the smaller screen of a notebook computer or a large monitor.Designed for comfort, this four-button USB-C mouse fits perfectly in the palm of your right or left hand, and when you're on the go, it slips easily into the pocket of your laptop bag. Never worry about replacing batteries or problems with connecting, whether you're at the office, working from home, on a laptop at your favorite coffee shop, or studying in a college dorm room. The Lenovo 400 USB-C Wired Compact Mouse is made for everyone who needs a simple to use, lightweight computer mouse with precise accuracy and zero latency.SPECIFICATIONS:Sensor Resolution: On-the-fly DPI button - 800, 1600, 2400 adjustableButtons: Left click, right click, scroll click, DPIDimensions: 3.78" x 2.20" x 1.38"