Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Did not work on Windows XP SP2

I liked the specs of the product, the form factor and the 100m range. But it just would not work on my Windows XP SP2 laptop. Another bluetooth USB dongle works fine for me.Contacted Zoom support- got prompt replies, also got a new beta version of the driver. Exchanged numerous (at least 10) emails and had at least 5 phone sessions. But that didn't help.In the process I definitely learnt about Bluetooth a whole lot but finally had to return the product back because it just wouldn't work.