Elecom unveiled the M-BL5DB series wireless optical mouse with blue LED optical sensor. Not that the color blue lends anything extraordinary to its tracking resolution, which is around 1000 DPI (mainstream), but some could find the soft blue light tolerable compared to red. The M-BL5DB is available in six color options to the frame around the egg-shaped main body and scroll-wheel: white, gray, blue, green, yellow, and pink. The mouse needs just one AA-size battery to work, its battery compartment doubles up as a place to store its easily misplaceable USB micro-receiver, with which it talks to the host over 2.4 GHz radio band. Measuring 56 x 90 x 32 mm (WxDxH), it weighs about 50 g (without battery). It is priced at 2,205 JPY (US $27).