Improve your work efficiency with this Kensington EQ wireless mouse. This mouse is made from 65% post-consumer recycled content, and works for up to four months on a single charge . The 2.4Ghz and Bluetooth provide dependable wireless connectivity. The built-in rechargeable battery avoids the need for disposable batteries. | Kensington MY430 EQ Rechargeable 2400 DPI Wireless Mouse - Black