Wireless remote: Presentation clicker supports your remote control within 30m distance when you plug the usb receiver to your computer. There is buttons

to control page up/down, volume, last/next song, hyperlink. The pointer pen is helpful for speech, meeting, teaching.Rechargeable battery and long life:

Build-in rechargeable lithium battery, smart saving electricity and auto-sleep tech, you can use the presentation clicker for a month without placing battery,