What are CLEARANCE ITEMS?
A product started its life in the distribution channel in various markets. At some point, sales dropped so much that no distributors bother to order it anymore. Product such as uDSD is a perfectly good product, but due to competition, and Nuprime's sales channels (dealers mostly want to sell high end products, not cheap portable products), so the model gets discontinued. The remaining stocks are put into clearance for direct sales at discounted price.
You can only order clearance items DIRECTLY from the factory. And it will be shipped by post office EMS mail (typically one week to ship worldwide).