Infiniter brand = superior performance. The choice of professional. The ultra bright infiniter lr3 laser remote presenter is sleek and stylish shape fits comfortably into your hand. In addition to the remote control of your computer"s page up and page down functions this presenter also has a wireless mouse to control the media player system and adjust the sound level on your computer. The receiver is integrated into the main body of the presenter and can easily be connected to your computer and can operate without any driver software. It is packaged with a usb extension cable and magnetic protective box for easy storage. The lr3 uses one AAA battery and has an operation time of 6 continuous hours. It uses infra red technology and is as easy to operate as your remote control for your TV. Or air conditioner. Easy to operate, this unit is an inexpensive and simple way to enhance your professional presentations. Infiniter brand = safe, superior performance.