Radio programs are cheap to make compared to television and video. Radio receivers are widely available, comparatively cheap and portable, making them convenient for listeners. Radio can reach people who are isolated by language, geography, conflict, illiteracy and poverty. Radio can help create a demand for services and convey vital information. Radio can facilitate assistance in the early stage of complex emergencies when forms of aid are not possible.
Radio can be a group activity, encouraging discussion of educational issues after the broadcast.
In many rural areas radio is the only source of information about market prices for crops. It is used both for formal and informal education such as agricultural extension information for farmers and agro-food processors. It plays an important role in the preservation of local language and culture. It can be used in calling for emergency medical assistance. Many people lack sufficient access to electricity, and batteries are expensive to obtain.