An explainer video is a short, engaging video designed to clearly and concisely communicate the essence of a product, service, or concept. Typically lasting between one to three minutes, these videos utilize a combination of visuals, animations, voiceovers, and music to simplify complex ideas and capture the audience's attention. They are particularly useful for testing business ideas because they provide a quick and efficient way to convey the core value proposition to potential customers or stakeholders. By presenting the idea in an easily digestible format, businesses can gauge interest and gather feedback without investing heavily in full-scale development. This allows for iterative refinement based on viewer reactions and insights before committing substantial resources.