TNI Slim Mouse for PC and Mac 2.4G Wireless Optical, UV Surface - Silver 2.4G 3D Wireless Optical Mouse, with Mini USB 2.4G adapter inside battery cover 800-1600 DPI fast respond and high precision ABS Material UV surface glossy slim and sleek design 1 AAA battery is included, very long battery life, comfort and elegance design profile TNI stands behind our products quality with 100% customer satisfaction and money back warranty