Giving you a comfortable and stylish way to use your computer, the Microsoft 4000 Wireless Mouse is the perfect product for home or office use. With an ergonomic design that provides comfort, this mouse is suitable for left or right handed users. Featuring both vertical and horizontal scrolling, the mouse provides you with an easier way to browse and really make the most from your computer. Unbound from wires, you can be sure that this wireless mouse will work without the signal dropping in and out.