I was 3 years old model who was in charge of office support and that was really great and then when he passed away, I was very happy to find almost the same model, a bit changing. The key is smaller than the previous model and therefore less likely to hang with his cell for the rest, it is always in top performance, I have no worries, fast, accurate, the only downside, is that the small charging station was very nice, and that here only a usb wireless ... fortunately he also has to stack on the case, but in fact, we often forget to put in charge usb ... I recommend it without a doubt.
