What is the fine-grained topic of the following text: With a CL-WIFI connected to a 788T over the C.Link connection, the 788T is controllable by an Apple iOS device, such as an iPad, iPhone, or iPod Touch running iOS version 4 or greater, users can control a 788T with the free CL-WiFi Controller app. Only return the topic.
Controlling a 788T with an Apple iOS device through the CL-WiFi Controller app