RC10813 Digital Z21 WiFi MultimausControl unit with many operation functions. Several Z21 WLANMAUS can be simultaneously operated possible with all Z21 systems (z21 start combined with WiFi Package) or if your own router is available with Art. no. 10818 z21 activation code. The Z21 WLANMAUS gives you wireless freedom around your layout. Wireless freedom, 31 functions per locomotive (including headlights) Control of up to 9999 locomotives and 2048 turnouts 100 locomotive addresses can