Check the listing for details. Ergonomic Mouse Optical Vertical Mice 6 Keys USB Wireless 2.4GHz 1200DPI For PC. Color: Black, Condition: New. Listed at 9.99 USD. Product Features: Ergonomic design, can be pressed against your hand, smooth touch can bring you a comfortable grip. No tangled cable, adjustable DPI allows you to enjoy the best game experience. Easy to use. 2.4GHz digital wireless transmission, operation distance is up to 10 meters. Intelligent connectivity, no need to code, plug-and-play. Very cool and special vertical design. 6 keys multifunctional wireless mouse, wireless transmission and smart stay. Ergonomically designed for comfort grip. Product Specification: Type Wireless Rechargeable Vertical Mouse Material Plastic Color Black Wireless Frequency 2.4GHz Range 0-10m Buttons 6 Max DPI 1200 Connectivity Wireless Interface USB Method Optical USB 2.0 Power Supply Package Includes: 1 x Wireless Mouse 1 x USB Receiver