Features:

USB receiver is plug and play - no driver required
Power saving, lightweight, suitable for putting in your pocket or handbags
Supports MS Word, Excel, Power Point, or any application with page up and down function
Presentations from up to 15 meters away (shorter distance with obstacles such as walls)
Power Supply: 1 * AAA battery (not included)
Switch: Button
Operating System: USB interface and Microsoft Windows All Versions