Description: Dual mode connection: The dual mode mouse supports both and connections, allowing users to choose a more stable connection or a more convenient connection, allowing users to easily and stably switch wirelessly between devices to meet different needs. equipment requirements.Lightweight: The computer mouse is designed to be lightweight, providing a more comfortable gaming experience, especially during long gaming sessionsVertical Design: Vertical Mouse's unique vertical design follows ergonomic principles, feels comfortable in the hand, effectively reduces hand fatigue, and provides a more comfortable and experience during long term use. Connection: Vertical MouseOptical Mice is easy to use, 800 1200 1600DPI adjustable, responsive and suitable for most common computers.Roller: Ergonomic Mouse's soft rubber wrapped roller can effectively increase comfort and reduce discomfort caused by friction with your hands. Specification: Battery: Use 2 AA batteries (not included) Size Chart: 10.5cmx8.5cmx8.8cm/4.13inchx3.35inchx3.46inch Package Includes: 1 Wireless vertical backlit Mouse1 USB receiver Note: Please allow slightly errors due to manual measurement and different monitors.