ShenZhen HTC Electronics HTC-601B

A date code (year+week) of 1010 (March 8th to 14th, 2010) is silkscreened on the board in the images shown below.

Appears to be manufactured by ShenZhen HTC Electronics Co., LTD, part of the Taiwan-based Gold3link Electronics Group.

External

 * Shells for these devices probably differ.