Voberry&reg; Hot Sale Portable 2.4G Wireless Mouse USB Receiver RF For Desktop & Laptop PC Computer(Red) 2.4GHz wireless transmission up to 10 meters operating distance Built-In mouse memory, no recording is needed after battery replacement With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing Intelligent connectivity, no need to code, plug-and play Voberry is a protected trademark