... , cheap wireless mouse, 2.4 GHz High Speed Quality USB Wireless Slim Optical Mouse Mice USB 2.0 Receiver Black And White For ... memory, no recording is needed after battery replacement.With 6 Keys, including Scroll Wheel, Page Forward and Page Backward ... office use.Specifications:RF carrier: 2402-2480MHzRF operation channel: 16, auto frequency hoppingUSB: USB 2.0Operation systems: Windows 2000, Me, XP, ...