This is an excellent microphone for flute.
It is very easy to fit onto the instrument, and has a nice long cable.
It is leagues ahead of the mic we used to use and does not seem to feedback. Instantly we noticed a jump in quality.
It can be powered by a single AA battery or via phantom power.
I had a slight mishap when I first got it - no sound! There is an on/off switch on the side, which can also act as an eq cut - this is not really needed on phantom power, and I would have preferred 2 seperate switches - one for power and one for eq, but it's not a deal breaker.
The only thing I don't like is that the XLR port was VERY tight, but I am sure this will loosen up over time.
If you want a flute mic, this is the one to buy!