Ergonomically designed: With a beautiful silhouette, soft rubber grips, gently curved sides, and a wide palm area, it provides the support you need for easy control throughout the day. 2.4GHz wireless technology provides powerful and reliable connectivity, with an effective range of up to 10 meters. Built in durable rechargeable battery, it can be easily charged using the included USB cable without requiring battery replacement. Plug and Play: There is no need to install any drivers, just plug the USB receiver into the laptop, and the mouse can start working.: Small size, light weight, easy to carry or travel..syi