Extremely quiet, as quiet as a mouse: A silent wireless mouse for incredibly quiet operation, whether you're moving the mouse, scrolling, or pressing a button; Perfect for shared offices, conference spaces, cafes, libraries, or bedrooms, this computer companion DPI levels that are adjustable: Adjust the DPI settings of the wireless silent mouse to 1000/1600, 2000, or 4000 to suit your sensitivity requirements; Precise movements at high speeds, ideal for a 4K or 8K HD Show Comfortable but Slim: This thin USB mouse is perfect for travel or carrying around thanks to its ultra-thin, lightweight design and conveniently located USB receiver. Ergonomic design for comfortable hands throughout the day Extended-Life Battery: The UGREEN Wireless Mouse has a battery life of up to 18 months thanks to an advanced processing chip with clever power-saving technology; Observation: The mouse on the PC