16A simonk firmware brushless ESC is specially designed to meet the demand of ever popular multi-rotors. And it has multiple protection features: Low-voltage protection, over-heat protection and throttle signal loss protection. With better quality and competitive price, it will be your best choice for multirotors.<br><br><br>Features:<br>Fast throttle response.<br>Extremely low internal resistance.<br>Specially designed for multicopter.<br>The maximum refresh frequency up to 500Hz throttle signal, compatible with most flight controls.<br>Multiple protection features: Low-voltage protection, over-heat protection and throttle signal loss protection.<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>Constant current: 16A<br>Power supply: 6-16.8V (2-4S LiPo battery)<br>BEC: NO<br>Quantity: 4Pcs<br>Signal frequency: 20-499Hz<br>Output PWM frequency: 18KHz<br>Firmware: Simonk firmware<br>Item size: 37 * 14 * 3mm (without wire)<br>Item weight: 6g<br><br>Package Information:<br>Package size: 10 * 4.5 * 4cm / 4.0 * 1.8 * 1.6in<br>Package weight: 36g / 1.3oz<br>Adhesive tape package<br><br>Package List:<br>4 * 16A Brushless ESC