SKYRC nano 20A brushless ESC is specially designed to meet the demand of ever popular multi-rotors. With better quality and competitive price, it will be your best choice for multirotors.<br><br>Features:<br>Fast throttle response.<br>Extremely low internal resistance.<br>Super smooth and accurate throttle linearity.<br>Pre-programmed for use in multi-rotor platforms.<br>Based on BLHeli firmware, specially designed for racing quadcopter.<br>The maximum refresh frequency up to 500Hz throttle signal, compatible with most flight controls.<br><br>Specifications:<br>Brand: SKYRC<br>Power supply: 2-4S LiPo battery<br>Continous current: 20A<br>BEC: NO<br>Firmware: BLHeli firmware<br>Suit for: QAV250 300 RC quadcopter<br><br>Package Information:<br>Package size: 20 * 13.5 * 2cm / 7.8 * 5.3 * 0.8in<br>Package weight: 72g / 2.5oz<br>Plastic package<br><br>Package List:<br>4 * SKYRC Nano 20A Brushless ESC