1、Running BLHELI_S firmware 2、3 in 1 MOS driver 3、Supporting DSHOT and Oneshot, positive and negative 4、Supporting 2-4S lipo battery and buzzer 5、Supporting SBUS/DSM2/DSMX receiver and OSD remote controller to adjust parameter Features: Running BLHELI_S firmware. 3 in 1 MOS driver. MPU600 and STM32F3CCT6 MCU. Supporting 2-4S lipo battery and buzzer. Supporting SBUS/DSM2/DSMX receiver and OSD remote controller to adjust parameter. Supporting DSHOT and Oneshot, positive and negative. CPU is SILABS  EFM8BB21F16G. TPN2R703NL MOSFET. Specifications: Material: PCB Color: As Pictures Input Voltage: 2-4S LiPo / 2-4S HV LiPo BEC Output: No PDB Output: 5V 1A Constant Current: 15A Max Burst Current: 25A for 5S Size: 27 * 31 * 20mm / 1.1 * 1.2 * 0.8inch Package Weight: Approx. 73g Type: RC Accessory Package Include: 1 x Set of Electronic Speed Controller + Flight Controller Board with Cable