WhAT IS SM?
First, there was AM. And then came FM. Next, it was XM. The problem with traditional radio formats, is that you either had to pay for it (like XM), or you couldn’t listen everwhere (like am and fm). And don’t forget about static and poor audio quality.
SM is radio for today… streaming where ever you have an internet connection. crystal clear, limited commercial interruptions, and free to enjoy.