What does Echelon sell?

As a cryptocurrency and finance practitioner, I'm curious to know the specifics of Echelon's offerings. Could you elaborate on what services or products Echelon sells? Is it focused on cryptocurrency mining, trading platforms, or perhaps a suite of financial advisory tools? Additionally, are there any unique features or benefits that Echelon provides that set it apart from its competitors? I'm particularly interested in understanding the value proposition and how it caters to the needs of investors and crypto enthusiasts.