[skykooler]

Is there a standalone controller for these, or can they only be controlled through an iphone / android?

[rimliu]

The controller comes in a box. Not sure if you can fly the drone without the phone connected similar to the Mavic, my guess would be yes.

[megaremote]

Since this has a range of 4km, it requires a controller. There is now way to get that distance without one.