Both use a 2.4GHz wireless USB connection, providing you with a 10-foot radius of Ring Mouse action on either OS X or Windows.

ENGADGET

Amongst the updates are a more textured backing for the cover, which should help it stay in small hands and some more subtle choices, like the inclusion of tiny X's, corresponding to the O ring at top, in keeping with the product name.

ENGADGET: blogger-avatar

Specifically designed to take advantage of the camera's mirrorless design, the X-Mount has a short flange back distance of just 17.7mm made possible by designing the mount ring as thin as 2.5mm.

ENGADGET: Fujifilm grows X-series mirrorless lineup with 16.3-megapixel X-E1