Hobbywing Skywalker 20A 2-3S Brushless ESC HWI80060010

This is a Hobbywing Flyfun 12A V4 2-4S LiPo Brushless Speed Controller.

Features:

• Safety arming feature: Regardless the throttle stick position, the motor will not spin after battery connected
  Throttle calibration function: Throttle range can be calibrated to be compatible with different transmitters.
  User programmable
• Multiple program methods supported: transmitter stick, LED Program Card. Very easy to program the ESC at home or at the flying field
• Compatible with Lipo and NiMH battery
• Low voltage cutoff protection / Over-heat protection / Throttle signal loss protection

Specs:
Output: Continuous 20A, Burst 25A up to 10 seconds.
Input Voltage: 2-3S Lipo, 5-9 cells NiMH.
BEC: 2A / 5V Linear mode BEC.
Refresh rate of the throttle signal: 50Hz to 432Hz
Max Speed: 210000rpm for 2 Poles BLM, 70000rpm for 6 poles BLM, 35000rpm for 12 poles BLM.
Size: 42mmx25mmx8mm.