Agreed...you require an Apple iOS 6 or 7 based product (eg...an iPad) with the Bluetooth feature turned on and the Ground Sation App started to be able to chat awy with your Naza based Hex. Alternatively you can utilise the 2.4 data link set-up for a PC based product to chat to the Hex but you will not be able to practice 'on' the ground (flight simulator) in the same way as it is possible using an iPad. Apart from that and perhaps lesser portability many users have suggested that the PC interfaces just as well as the iPad.