BETAFPV 85X FPV Whoop Quadcopter 4S with Inbuilt FrSky XM+ Receiver. The 85X FPV is a powerful quadcopter which packs in a powerful motor and is ideal for racing. The 1105 5000KV motor is powerful and supports 4S for FPV which is great for racing with negligible latency. This quadcopter has FV V2 4S FC and BLHeli_32ESC which combined with the 25V/220uf electrolytic capacitator provide you greater power and allows you to fly it safely too. It comes with STM32F051K66 processor FC boards which provide you faster and better input signals and reduces latency, which results in a higher power and better racing experience. The frame of this quadcopter is sturdy and lightweight also. An additional stiffener brace of carbon fiber has been added to provide greater stability, which is a highlight of the 85X FPV quadcopter. You do not need to do any soldering or tinkering to this quadcopter. It comes with a 450mAh 4S batteries, however, you can decide to use your own batteries with it along with the battery strap to meet your requirements. This makes the quadcopter more versatile and customizable, which is an added advantage. BETAFPV 85X 4K Whoop Quadcopter 4S with Inbuilt FrSky XM+ Receiver. The 85X 4K is one of the smallest quadcopters available in the market. It is capable of recording high-quality and remarkable 4K videos, which make it the highlight of this quadcopter. It comes loaded with F4 V2 FC and BLHeli_32 ESC which provide impressive 4S power and stability. It can be mounted with the Tarsier 4K camera to provide stunning 4K videos.