I've built dozens of multirotors and you can clearly see AMAXinno motors on the thing, (https://uavtek.co.uk/uav-fleet/bug) plus the big bulging 18650s. 99.9% chance it's using a COTS multirotor firmware or some variant of Ardupilot, and the camera looks like an old-school analog FPV camera. From the specs sounds like they have it running on the 5.8Ghz ISM band, so the thing will fall out of the sky the instant it encounter interference from some poorly configured consumer electronics.
I've built dozens of multirotors and you can clearly see AMAXinno motors on the thing, (https://uavtek.co.uk/uav-fleet/bug) plus the big bulging 18650s. 99.9% chance it's using a COTS multirotor firmware or some variant of Ardupilot, and the camera looks like an old-school analog FPV camera. From the specs sounds like they have it running on the 5.8Ghz ISM band, so the thing will fall out of the sky the instant it encounter interference from some poorly configured consumer electronics.