I select this product because I be a fan of Logitech Keyboards and mouse . I pay $ 79.00 for a similar product almost five year ago and be very happy with the quality and value of the product . at $ 39.99 , I be willing to take a chance on this product due to my past experience with Logitech product . I be not disappoint at all with this combo . the keyboard be solid and have good `` feel '' , not cheap or noisy . the laser mouse be very fast and accurate . so fast , that I have to adjust the tracking speed down from my former optical mouse . I have to turn the receiver for this combo be very , very , small . it be so small it come with a label and plastic attach so that you do not lose it while unpack . it can be place in the front port of you desktop , or can be leave in a side port of you laptop . all in all , a very good deal , the quality and value be as I expect , and it even come with battery for both .