The included phone holder has a cold shoe mount that can accommodate the included Vibe P96 LED illuminator, which itself has three cold shoe mounts to expand your setup even further with such accessories as the included Wave S1 Lite microphone. Further expansion is possible with the included dual-cold-shoe extension bar that provides a wide-right and wide-left pivoting cold shoe and attaches in between the phone holder and ball head. It's a solution for those who want the ability to be prepared for most any shooting situation.