Ergonomic and compact design provides comfort during extended use, suitable for medium to large hands. Dimensions: 120 x 80 x 65 mm. 2.4 GHz wireless technology ensures a stable and reliable connection with a range of up to 10 meters. USB receiver stores in the back of the mouse near the battery compartment. Adjustable DPI settings: 800, 1200, and 1600 DPI. DPI adjustment button located on the side of the mouse. Left and right buttons operate quietly for a noise-free environment. Note: side buttons (forward, backward) are not silent. Compatible with computers, PCs, laptops, and MacBooks running Windows, Mac OS X, or Linux. Side buttons may not function on Mac systems. Powered by 2 AA batteries (not included). Includes: 1 wireless mouse, 1 2.4 GHz USB receiver (stored in the back of the mouse), 1 user manual. Durable construction with buttons rated for up to 5 million clicks. Plug-and-play functionality—no software installation required. Works with devices featuring a USB port and compatible with Windows 2000/ME/XP/Vista/7/8/10, Mac, and Linux operating systems.