Logitech wireless presenter R400 is designed to help you make your point. Its intuitive slideshow controls help you navigate through your presentation with confidence. Buttons are easy to find by touch. And its shape feels great in your hand. It?s got a red laser pointer that?s easy to see against most backgrounds and a range of up to 50 feet (15 meters), so you?ve got the freedom to move around the room and mingle with your audience.