unfortunately, I am experience the same thing on my new Q2. I received it on Friday, after 3 days of testing, reset, pair, unpair the device, I think I will give up on this device.
My problem is with A2DP audio streaming. The good part about this headset is the audio quality, it's the best I have heard on any bluetooth device, but the breakup and disconnect is very annoying. I can hold it in my hand, put in pants pocket, even shirt pocket, the audio streaming will breakup every 10-20sec. It's very short, but very annoying.
The bluetooth phone portion seems to be fine, not suffering from the audio streaming breakup. Like Cubfan said, it's probably weak bluetooth antenna or something.. I can hold my hand over the bluetooth headset, and it will disconnect the audio streaming instantly.
Maybe I'll try Q3 in the future
Btw, the update software is very buggy. I tried it on my Win7 32-bit, not working. Tried it on one of my WinXP 32-bit laptop, had trouble installing driver and software crashed. Finally tried it on my WinXP 32-bit desktop, and it works just ok. The software would crash when checking online for update, and then I have to restart the software at least 3 times. The latest version is 1.1 (I reflashed and didn't fix the above stream problem).