The additional included accessories let you enhance these core components for increased capabilities. Add the extension pole to transform the tripod into a selfie stick that can extend up to 27.3". Add the cold shoe extension to the top of the phone clamp and use 2 of the 3 cold shoes with the included external microphone and LED light. The microphone connects via 3.5mm jack and the light provides 6 brightness levels and a host of other features.