For velvet-smooth wireless mouse operation, look no further than the Advent A27BMSB09 Wireless Optical Mouse. With its special 27 MHz wireless USB 2.0 receiver, all you do is plug the mouse into your PC's free USB port. The Advent A27BMSB09 Wireless Optical Mouse stitches accuracy, reliability and efficiency together seamlessly via its unique optical tracking technology. Cursor control has never been slicker or simpler with the affordable Advent A27BMSB09 Wireless Optical Mouse.