Presentation Cliker: Clicker Buttons Functions: ? On/Off Switch ? Button Indicator LED ? Red Light ? Page up/Page Down ? Full Screen / Exit / ? Black Screen Product Parameters: Wireless technology: 2.4GHZ RF technology Remote Control Range: Up to 328 ft(in an Open Environment up to 100 Meters) Light Distance: Up to 600 ft Light Category: Class 3R Output power: Light Wave Length: 650nm (red light) Sleep current Power Supply Mode: 2*AAA Battery (Not included) USB Receiver Parameters: Operating System: Windows/Mac/Android Power Supply Mode: USB Power Supply Compatible Interface: USB 1.1/USB2.0/USB3.0 Package listing: 1 x Wireless Presenter Remote Control 1 x USB Receiver 1 x User Manual& Warranty Card