DrRadium No,nit water proof. It might tolerate some sprinkles but not hard rain or immersion.

DrRadium That is going to depend entirely on the laws of the country it is being flown in. Usually the categories are based on weight. With battery, this weighs 525g (about 1 lbs 2.5oz). In the U.S., that is not low enough to avoid FAA registration in the USA (under 250g). Not that it affects the class, but keep in mind that this is based on the MJX bugs3 which has not been made for several years, some key parts, for example the airframe of the drone, are not available anywhere, If it breaks, there is no way to buy just that part.

DrRadium You can make your own from standard 7.4V 2S Lipo batteries. . JJRC won't sell them fir some bizarre reason.

DrRadium You can make them. I describe how in my review. Its easy and you get to use a much larger capacity battery. You could also just pop the case open carefully and place wires wires directly on the DC inputs of the video unit and forget about casting the mock battery interface I made. Just make sure to keep the correct polarity as I show in the pictures associated with my review. There probably is no reverse polarity protection , though you could add diodes when attaching wires if you wanted to add it. You just need a standard 7.4V 2S lipo to provide power. There is nothing special about the stock battery pack and JJRC could sell them at a reasonable price and still make big profits.