Original Flycolor Raptor Series 30A OPTO Brushless ESC Electric Speed Controller with BLHeli firmware for 450 550 Class Multicopter<br><br>Features:<br>High performance MCU<br>Compatible with various flight-control systems<br>Optimized open-source BLHeli firmware for brushless motor, excellent compatibility<br>Support Oneshot125, the highest throttle signal up to 500Hz, a faster refresh rate<br>Supports 4S battery, rapid beyond the ordinary ESC for racing level players demand for violent play 3D play<br>Throttle signal is twisted pair cable, reduce the crosstalk while the signal transfer by the copper wire and flight more stable<br><br>Specifications:<br>Brand: Flycolor<br>Continous current: 30A<br>Burst current: 40A (10S)<br>BEC: NO<br>Power supply: 2-4s LiPo battey<br>Size: 29 * 12 * 3mm<br>Weight: 11g<br><br>Package Information:<br>Package size: 12 * 10 * 3.5cm / 4.7 * 4 * 1.4in<br>Package weight: 90g / 3.2oz<br>Adhesive tape package<br><br>Package List:<br>4 * Flycolor 30A ESC