Review on 🚁 ARRIS C250 V2 250mm FPV Racing Drone RTF with Flycolor 4-in-1 S-Tower, Radiolink AT9, 4S Battery, and HD Camera - RC Quadcopter by Deb Wach

I was so excited to fly this drone, watched a few videos, read reviews and was excited to say the least. This drone will fly and it sounds amazing, it's very fast. However, there was a very constant loss of communication or power to the three batteries. I would fly no more than 50 meters from the radio controller, line of sight, and the drone would fall out of the air, I realized this was due to the Radio Link AT9 ring transmission. I flew straight into a donut hole and it lost signal. After I adjusted the antenna to stay at a 90 degree angle while flying, this problem went away. A throttle loss incident resulted in the battery detaching on impact and being burned by the propellers (the $40 battery was gone).