The Logitech MX Vertical Wireless Bluetooth Mouse is a sleek and ergonomic mouse designed for comfortable use. With its vertical design, it helps promote a more natural hand position while using your computer. The mouse features wireless connectivity via Bluetooth, making it easy to connect to your devices without the hassle of dongles. It also includes an optical tracking method for precise cursor movements and has a total of 5 buttons for convenient navigation. This pre-owned Logitech mouse is a reliable and high-quality option for those looking for a comfortable and efficient Bluetooth mouse.