Terrific keyboard for many app . Compact and reasonably light . cleverly design w\/left click on both the left and right side of this keyboard . Scroll and trackball be real winner in this design too . this be my second one and I have get really good at gaming with it . but do not expect to do the same until you have it a while . the usb receiver limit you range if you have obstruction . with it in the back of you computer it may skip now and then and in the front it be susceptible to be bump -lrb- nearly 3 '' out from computer -rrb- . put in a well place usb hub though and it might still work from the McDonald 's drive-thru ... I often use it across a large open room with no problem . very handy and as the price drop even better for you .