the connection via Bluetooth has proven to be very nerve wracking, totally unstable, difficult to produce - you can totally forgot! Questionable how Lego so may obstruct a crap. We are turning to Wi-Fi. This is not integrated! The advertised everywhere in forums and also here allegedly only runnable Netgear N150 Wireless Stick (Micro Stick) does not go up !!!! According Lego hotline it has the Netgear WNA 1100 (large construction> does not work with all models due to its size) to be !!! One recognizes the compatibility in mind when you activate the WLAN EV3 whether an error message or the SSID list comes. Otherwise, it must be said that they, the operation (no backlight), the programming software via PC is documentary already extremely used to. This has nothing of Plug'n'play or ease of use. I am a computer and do not look through here, just get a constant anger ... If it were not for my son ware, I would send back part. 2 stars for Lego tinkering 0 stars for usability. The supplied remote control was the same defect ...