Looks like an unbranded Benchwheel being sold under a different name.

http://www.amazon.com/Benchwheel-Dual-1800w-Electric-Skateboard/dp/B01AXGX8MC

When these were in stock back in March and April they were about $600 USD: http://camelcamelcamel.com/Benchwheel-Dual-1800w-Electric-Skateboard/product/B01AXGX8MC

Search this sub for Benchwheel and you'll find a few reviews.