Polaris is in the BLHeli-S firmware based on the special lightning power transfer on the specialized development of a cost-effective power transfer. The ESC has the advantages of small size, light weight, fast response, high efficiency, supporting high-speed motor and so on. ZTW Polaris series brushless ESC with stable quality and low cost which can help more and more multicopter fans jion in the FPV racing to enjoy their fly.<br><br><br>Features:  <br>BLHeli-S, better startup than BLHeli.<br>Supports high KV motor and BLHeli REV 16.0.<br>Support flight control like Naze, CC3D, Kiss, F3 and F4.<br>Autodetect Oneshot 125, Oneshot 42 and Multishot.<br>MCU-EFM8BB21F16 and hardware PWM make smooth throttle response. <br>This is new generation ESC for entry level and middle level FPV racing.<br><br>Specifications:<br>Brand: ZTW<br>Item name: Electronic Speed Control<br>Model: Polaris 25A 2-4S BLHeli-S ESC<br>Continuous current: 25A<br>Burst current(10s): 35A<br>BEC: NO<br>Battery NiXX/Lipo: 5-12NC/2-4S Lipo<br>Width: 14mm<br>Length: 27mm<br>Height: 5mm<br>CPU: EFM8BB<br>Programmable: Yes, autodetect Oneshot 125, Oneshot 42 and Multishot<br>Software: BLHELI_S<br>Weight: 6g<br><br>There may be some deviation due to manual measurement.<br><br>Package information:<br>Package size: 12.7 * 12.5 * 2cm / 5 * 4.9 * 0.78in<br>Package weight: 72g / 2.5oz<br>Poly bag package<br><br>Package List:<br>4 * ZTW Polaris 25A 2-4S BLHeli-S ESC<br>1 * User Manual