buy this to use in a classroom . initially it be not bright enough to use without the classroom light turn off . however , aftter adjust the `` brightness '' level we be able to leave the light on . by the way , adjustment in the menu selection can be do on the projector , but I find it a lot easier to use the remote . install the usb software that come on the CD and hook up the usb cable from the laptop to the projector . bring up a powerpoint presentation and quickly confirm my hope that the include remote for the projector be able to run the Powerpoint presentation . if this be the only thing you will be use the projector for , then there be no need to buy another `` wireless mouse . '' however , it will not work with powerdvd . if show video , then do not use the usb cable . the video show fine on the laptop screen , however it be stuttering\/jerky on the projector . plug in the VGA cable and everything run smoothly . come with VGA , usb and `` standard '' electrical power cable . -lrb- the same type of cable most monitor and desktop computer user . this make it easy to find a quick replacement in case you forget yours at home . -rrb- the usb cable be also a standard type a on one end and type b on the other . it be nice to know that I will not have to order special cable if one be damage or lose . keystone adjustment for vertical and horizontal . have a focus and wide\/telephoto adjustment . under the menu option you can see how many hour the projector have on the bulb . Might come in handy to give you a little warning that you need to order a new one . con : turn off quickly and the fan stop . however , the device still feel hot to the touch . I can see this as a positive if you need to unplug and move it to another location quickly , but I would prefer a option to keep the fan run to continue to cool the bulb down . I do not like put the projector back in the bag when it be still hot , so I have to wait even longer than if the fan be cool it down .