The stick is nice and small, will 64bit immediately detected and installed on Win7. You should install the software from the CD, so that works out the connectivity problems. To reach I can not say anything because my headphones make limp to 10m outdoors, at least there is no including disconnections.
For XP 32bit including USB 1.1 / 2.0, he was also compatible.
In operation / standby weak green LED that glows not disturbing.
Full recommendation !!
MfG