Features:

• XS20A solder version
• BLHeli_S ESC with Hardware generated PWM synchronous to MCU yields ultra-quiet motor performance.
• Utilizes high-performance EFM8BB2 50MHz MCU
• BLHeli_S does Damped Light only
• Firmware upgradable via signal wire (works with USB Linker for XM series)
• Supports Motors with super high KV (EFM8BusyBee 50MHz can handle up to 500k eRPM)
• Supports 1-2ms signal, Oneshot125, Oneshot42 and Multishot.
• High-current burst rating
• High-Resolution Throttle steps

Specification:

• BEC: NO
• Weight: 4.49g
• Input Voltage: 3-4s Lipo
• MCU: Silabs EFM8BB2
• Size(mm)L*W*H: 24*14*4.5mm
• Firmware: BLHeli Bootloader & BLHeli_S