Growth in sales of the fourth-generation iPod Shuffle.

Sales of the most affordable line of iPod, soared more than 50 percent, after Apple released a new, more compact model.
Data analyst firm NPD show immediately after the appearance, sales rose 51 percent in the first week. And grew by 10 percent over the next 2 weeks.
Nevertheless, the overall level of sales of all iPod models fell by a staggering 38 per cent, compared with the same period last year. Although with the same face and other companies producing portable players, against the backdrop of a difficult financial situation.
Also in NPD reported that sales leaders are models of iPod Classic and iPod Touch c volumes of 8 and 16 gigabytes.
Add that statistics firm NPD covers only retail stores Apple Store, and accepted sales in shops Apple and other companies.