You can advertise your product on radio and the rate of advertisement is usually lower than other medium of communication.Important information or news can be easily spread on radio.For local market radio is one of the powerful medium of communication.Some of the Disadvantages of Radio are:Only an audio medium for communication.During bad weather you cannot listen radio properly. Often unclear and is affected by weather.You need to adjust frequency properly.Less and limited radio channels are available compared to other communication medium.