Really very small and almost invisible. This small adapter works perfectly without the fuss. Once connected, immediately used. Perfect when lack of space for a EeePC or laptop, or if it has a USB HUB for lack of taken on his PC. The advantage is that NOTHING exceeds (just 1 cm of the black plastic head). I have not tested with Bluetooth headphones (music or discussion), or at the range. But to get the files (pictures, MP3) from PC to phone or vice versa, it is really very practical!
