Radio advertising uses radio programs to promote a product or service. Radio spots typically last 15-30 seconds and are played on radio stations. Radio stations serve as a form of mass marketing and can be used to reach a broad audience in a short period. Radio ads can be employed to promote products and services, create brand awareness, and boost sales. They are most effective when personalized to cater to the needs of a specific demographic or target audience. Radio ads are created in a similar way to television ads, often involving the same production crew and studio, and are frequently produced by a commercial radio production company.