Check the listing for details. Logitech R400 Laser Presentation Remote - Black. Color: Black, Condition: Used. Listed at 25.00 USD. Logitech R400 Laser Presentation RemoteIn new/open box condition; but has been used a few times. No scratches, scuffs, or any wear. Presenter mode, built-in Class 2 laser pointer, intuitive touch-keys for easy slideshow control. Aa batteries required (best with Polaroid AA batteries)Bright red laser pointer - Easy to see against most backgroundsUp to 50-foot wireless range for freedom to move around the room2.4GHz RF wireless technology, built-in docking bay stores receiver for easy pack up and portabilityThere's no software to install. Just plug the receiver into a USB port to begin. And when the show is over, you can store the receiver in the presenterBattery type: 2 AAA batteries, Battery life (Laser pointer): 20-hour maximum and Battery life (Presenter): 1050-hour maximum