TNI Designed Art Wireless Optical Mouse for PC & Mac 800-1600 DPI UV Surface Sleek Design - (White Flower) 2.4G 3D Wireless Optical Mouse, 800-1600 DPI, USB adapter included and store inside batteries cover Installation instruction is available from the product information area below 2 AAA batteries are included, very long battery life, built-In wheel design, smooth scroll and high precision UV Surface, shiny sleek design with art work, comfort and elegance design profile TNI stands behind our products quality with 100% customer satisfaction and 100% money back warranty