LOGITECH W/L PRESENTER R400 910-001356

Controls : Intuitive touch-friendly buttons for forward, backward, slideshow start, and screen blackout
Laser Pointer : Class 2 red laser pointer that is easy to see against most projection and screen backgrounds
Range : Reliable 2.4 GHz wireless connection with an operating distance of up to 15 meters
Setup : True plug-and-play USB receiver with built-in internal receiver storage for easy transit
Power & Indicators : Powered by 2 AAA batteries with a built-in battery status indicator light
Dimensions & Weight : 11.55 x 3.78 x 2.74 cm; lightweight design weighing only 57 g.