This mini racer is intended for drone racing: it is a device equipped with 3.5-inch propellers that weighs, without its battery, 87 grams for the version with analog video feedback, and 108 grams for the digital version.
The device is based on a minimalist carbon structure which hosts brushless motors EX1404 at 3500KV. The flight controller, flashed with Betaflight, is available in two versions. One offers an SPI radio receiver compatible with FrSky D8 and D16, the other an ExpressLRS 2.4 GHz receiver, also SPI. The motors are driven by a 4 in 1 ESC (the amperage is not indicated by the data sheet). The propellers are 3.5 inch HQProp T3.5x2x3. Happymodel recommends 4S batteries of 750 mAh for an autonomy that can reach 9 minutes.
The model with digital video return is equipped with a Nebula Nano camera and a Vista box compatible with the DJI Digital FPV System. The model with analog video return integrates a Caddx Ant 1200TVL camera and a 5.8 GHz analog video transmitter OVX303 capable of transmitting at 25 mW, but also up to 300 mW.