Logitech B170 - Mouse - optical - 3 buttons - wireless - 2.4 GHz - USB wireless receiver - black. Now is wireless. With Logitech B170 wireless mouse, choose the reliability of a cord with the convenience of wireless - and a 10-meter (33-foot) range - thanks to Logitech advanced 2.4 GHz wireless technology. This affordable mouse works for very long time on a single AA battery. Set up is simple - just plug the tiny wireless receiver into a USB slot. There's no hassle with pairing or software installation.