Details on the reported service are thin, but it seems that users will be able to listen to on-demand, ad-free music through Amazon's smart-home devices. It's not clear how Amazon will differentiate the service from competitors apart from its price.
It looks like Samsung will soon have its own home device to compete with the Amazon Echo and Google's incoming Home. Called a Scoop, the hardware is very reminiscent of an Amazon Echo Dot; it's short, but packs all the same punch you'd expect from a smart home device.