Ergonomic design helps reduce hand fatigue, and 3 adjustable DPI settings provide a more enjoyable user experience. Features: 3 DPI settings: 1600, 1400, and 1200 DPI allow you to control cursor speed with precision. No driver required—plug and play compatibility. 2.4G wireless technology: Enjoy fast and reliable data transmission with the convenience of wireless connectivity. Comfortable shape: Contoured design with textured natural bamboo grips provides comfort during extended use. Wide compatibility: Works with most systems including Windows, PC, Laptop, and Computer. Energy-saving function: Automatically powers off when not in use or when the PC is turned off to conserve battery life. Specifications: Model Number: MG95 Project Type: Ergonomic Optical Mouse Resolution: 1600 / 1400 / 1200 DPI Maximum Working Range: 10 meters Color: Yellow Material: Bamboo Battery: Requires 2 x AAA batteries (not included) Button Lifespan: 5 million clicks Rated Voltage/Current: DC 3V / 5mA System Requirements: Compatible with Windows Vista, Windows 7, and other supported systems Item Size: Approx. 9.1 cm x 5.5 cm x 2.6 cm (3.6 in x 2.2 in x 1 in) Item Weight: Approx. 84.1 g (2.96 oz) Package Size: Approx. 16.5 cm x 10 cm x 4.2 cm (6.5 in x 3.9 in x 1.7 in) Package Weight: Approx. 177 g (6.23 oz) Package List: 1 x Mouse 1 x USB Receiver 1 x English User Manual