Finally a solution from FrSky for all those micro brushed quads. F3EVO running betaflight and fully firmware upgradeable. Pre-soldered connectors makes this unit ready to install and bind. Upgrading your Tiny Whoop has never been easier.Specifications: Dimension: 29¡Á29¡Á6mm (L ¡Á W ¡Á H) Hardware: STM32F303 CPU (72MHz inc FPU), MPU9250 (accelerometer/gyro/compass), CC2510 CPU for XM receiver Weight: 3.4g Channels: 16CH (8CH is RSSI) by SBUS to UART2 Rx of F3EVO Operating voltage/current: 4.2V@75mA Compatibility: FrSky Taranis X9D/X9E/Q X7/ Horus X12S/XJT in D16 mode Firmware Upgradeable