Thanks OP Looks a good price for what you get. However, the reviews suggest there's too much lag for the FPV to be useable May still be tempted to get one anyway
For more info.. https://www.google.co.uk/amp/s/amp.tomsguide.com/us/extreme-fliers-micro-drone-3.0,review-3772.html
Looking at pic there is battery bottom left?
Looks interesting, but I believe it is limited to just the internal battery so you'd have to recharge frequently.