One has to do what - so you can buy all kinds of useful things. This device, however, is really helpful. Work at the desk. Have a lot of meetings. The unit is very silent moving in the use and so light that it does not really stand the opposite, if you use it in conversation. For me a reason to actually use it. Good transport cardboard case. Have the device already 2 other colleagues recommended or they have tested it and it has already bought. Good Part