Online voice-over jobs exist in a variety of media types, from advertising to film to TV. Non-broadcast roles include helping to provide audio instructions for software or narrate online games. Many of the details of this job depend on the employer, and since online voice-over jobs are usually freelance, what you do can change from day to day. You typically make recordings in a studio with a professional microphone. Hours can vary, especially when you're new to the industry, so you may end up working in other roles to supplement your income while building connections and preparing to transfer to full-time voice-over work. Many companies prefer the title of voice actor for this position, so you may need to search under both terms to find jobs.