Thank you for viewing my products. Please read the profile before purchasing. Click here for the product list ↓↓ #maimai7 Multiple purchase discounts available! Please consult with me ☆ Power supply... Battery-powered Black Connectivity... Wireless (Bluetooth) The Microsoft Mobile 4000 Wireless BlueTrack Mouse combines the power of optical and the precision of laser to provide excellent tracking on virtually any surface. This versatile mouse comes with a plug-and-go Nano transceiver that you can leave connected on the go or store in the mouse when not in use. The included Microsoft 2.4 GHz wireless technology provides a reliable connection up to 30 feet away and is virtually interference-free, so you can move the mouse where you need it without losing connection. Designed for long-term use, this mouse has a 10-month battery life on a single battery. Other features include a Windows flip button, 4-way scrolling for increased efficiency, and 4 customizable buttons for accessing your most frequently used media, programs, and files.