Ergonomic Design Mouse: This Bluetooth mouse features an ergonomic design that promotes a natural and comfortable hand position, reducing the risk of wrist and shoulder pain during prolonged use. One Mouse for Multi-Purpose: This versatile mouse can connect to up to three devices simultaneously using Bluetooth 5.0, Bluetooth 3.0, and 2.4G Wireless, allowing you to switch between devices with just one click for seamless multitasking. Noiseless Click & Voiced Click: Equipped with 9 buttons (non-programmable), featuring noiseless click & voiced click on the left right button to meet your different needs for work or gaming. Rechargeable Vertical Mouse: It comes with a built-in rechargeable battery, meaning you can use the mouse for an extended period without worrying about replacing batteries. It's a great investment for anyone who values convenience and reliability. Universal Compatibility: This mouse boasts an impressively wide compatibility range thanks to its ability to connect wirelessly via both Bluetooth and 2.4G technology. It's designed to work seamlessly with virtually any Bluetooth-enabled device or those equipped with USB ports.