Studio photography is a genre that encompasses several other genres of photography including portrait, product, and macro photography. All these genres can be done in a studio environment using studio photography techniques. Studio photography is all about using artificial lights as ambient light is next to zero inside a closed room. Thus, a studio photographer has to have a very good understanding of how to set up artificial lights as well as the knowledge of how to control the ratio of each light to produce the right exposure.
With artificial lights dominating and the need to set up the intensity of each light, you need additional tools such as transmitters and receivers to make sure that you are able to control the intensity of each light remotely. Wireless transceivers also allow you to set up several channels to control each set of lights, in case you are using more than one set of lights.