The NGO Sahel Eco has developed a vocal technology allowing to provide digital services, irrespective of the language and the degree of literacy of the user. This NGO works in partnership with SBC4D (a company specialised in mobile and vocal technologies for social development), the European Union and Orange Labs on different progects like RadioMarché. It is a service that puts farm operators and buyers of Mali and Burkina Faso through. The application transforms the offers of sale sent on telephones via multi-language ads broadcast on local community radio waves.