MOFII 2.4G Wireless Optical Mouse Mice with USB Receiver, 3 Standard Buttons and 4 Level Power-Saving Mode for Notebook PC Laptop Computer Macbook (Blue) Smooth, precise and affordable wireless optical 3-button mouse with nano receiver for laptop, desktop, netbook and pc 2.4 GHz wireless provides a powerful, reliable connection, 10 meters working distance (360 degree range) Nano-receiver stays in your pc usb port or stows conveniently inside the wireless mouse when not in use (note: Receiver is stored within the mouse from production and needs to be removed once opened) Works with Windows 2000, XP, Vista, 7, 8, and 10, also works with Mac OS X (10.4 and Above) Powered by 1xAA battery (not included), auto on/off RF output design, 4 level power save mode, easy for your long-term use.