The special vertical ergonomic design with a soft rubber grip of the mouse V10 creates a unique and comfortable user experience. Its two buttons located conveniently on the side allow for faster back and forward browsing control. There are three available levels of DPI resolutions to choose from (800/1200/1600) and with its 2. 4 GHz radio frequency technology, the mouse V10 is wireless up to a range of 30 feet. To conserve battery power, there is a built-in on/off power switch as well as an indicator light letting you know when it is time to replace your battery. mouse V10 also comes with a Mini USB receiver that connects automatically without any hassle.