From http://www.audiotools.com,:Saiso Saisho - A brand used by UK based retailer Currys for low budget, Asian sourced products.
From http://en.wikipedia.org,:
Saisho is an own brand formerly used by Dixons stores (now known as Currys.digital) in the UK. It has since been phased out in favour of another of DSG's brands, Matsui.