Logitech R400 Laser Wireless Presentation Remote
- Intuitive controls and red laser pointer make presentations a snap, even in the darkest auditoriums
- Upto 50-foot (15-meter) range and battery indicator help you make ordinary presentations extraordinary
- No software needed, just plug the receiver into a USB port and you're ready to go
- Intuitive slideshow controls.
- Wave Length: 640～660nm (red light)
- Battery type: 2 AAA batteries
- Wireless technology: 2.4 GHz wireless technology
- 3 year limited hardware warranty
