especially if you sit for the projector in the dark it is very very very handy when the buttons are lit, and here in 3 levels (low, medium, light) The Tochpad is super and makes no quirks, left rear, the keyboard still a serves as the button click (right) so you can take the right using the touch pad and clicking to run without access under the Right Hand or have your finger to lift the touchpad - Very handy. Battery life is MEGA !!!! I am extremely satisfied! Since 2 months not loaded and used every day 4 hours (not typed permanently, television halt, with switching, loud quiet switch and Co) I have now been through at Sparks, but this is definitely worth the money. A little tip on Logitech: A would annähreungssensor awesome for lighting, then you have it not even so far as Touchen's light.