The ACK-3401U is so compact that it easily blends into the smallest working environments. With its width of just under 22 cm, it does not necessarily forego on comfort functions like a numpad. Thanks to the 2 m cable, it can be used flexibly and does not have to be installed in the immediate area of the workstation. Since there is a cable and no batteries need to be changed, it can be installed in a stationary position.