DYS BLHeli Opto ESC 30A 2-6S - Multirotor Drone Quadcopter ESC
excellent working condition
"Specifications
- Signal frequency: 20-500Hz
- Output PWM frequency: 18KHz
- Application: Compatible with SimonK & BLHeli 13.1 (Comes with BLHeli 13.1 Boot loader and Firmware)
- Opto: No BEC
- Weight: 14.5g each
- Size(mm)L*W*H: 45*16.6*5.5mm
"