Some (/ all) of these devices were sold with WaveBuddy branding. At least some of these devices have the incorrect FCC ID printed on the label - QS4-611AL.
Identifies in Windows as a..
Identifies in Linux (via pccardctl ident) as..
Socket 0: product info: "11WAVE ", "11WP611AL-E ", "", "" manfid: 0x0000, 0x0000 function: 6 (network)
Per the box, the output power of the devices is 14dBm +- 2dBm.
This device is also referred to as PWC-351 in the FCC docs.