The intuitive slideshow controls help you navigate through your presentation with complete confidence. Buttons are easy to find by touch. & its shape feels great in your h&. The red laser pointer is easy to see against most backgrounds. With a range of up to 15 metres 50 feet you can enjoy the freedom to move around the room & mingle with your audience for greater impact. A storable plug-&-play wireless receiver makes it simple to get started just plug the receiver into a USB (Universal Serial Bus) port & use it right away. Theres no software to install. When youre through the receiver stores inside the presenter to make packing up easy. Logitech Wireless Presenter R400 is designed to help you make your point. Its intuitive slideshow controls help you navigate through your presentation with complete confidence. Buttons are easy to find by touch. & its shape feels great in your h&. Its got a red laser pointer thats easy to see against most backgrounds & a range of up to 15 metres 50 feet so youve got the freedom to move around the room & mingle with your audience. A storable plug-&-play wireless receiver makes it simple to get started theres no software to install. & when youre through the receiver stores inside the presenter to make packing up easy.