Description: It has security power supply function and throttle span calibration function. It supports undervoltage protection, over-voltage protection, overheating protection and remote control signal loss protection. It is made of good quality metal and ABS material, durable to use. The length of this product is 8.6cm, the width is 3.8cm and the height is 1.2cm. It is suitable for car. Item Name: Electronic Speed Controller Material: ABS,Metal Output: Con.Current 80A; In. Current 100A (Not Less than 10s) Input: 2-6S or 5-118 Battery Pack BEC: 5V 5A (Built-in Switch Mode BEC Regulator) Throttle Signal Refresh Rate: 50Hz-432Hz Maximum Speed: 2-pole Motor Speed 210000 Speed/Minute, 6-pole Motor Speed 70,000 Speed/Minute, 12-pole Motor Speed 35000 Speed/Minute Features: Portable, Waterproof, Safe Size Details: 8.6cm x 3.8cm x 1.2cm/3.39" x 1.5" x 0.47" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Function: 1.1 Security power supply function: When the power is turned on, no matter where the throttle stick is in any position, the motor will not start immediately to prevent personal injury; 1.2 Throttle span calibration function: adapt to the difference between different throttle strokes, improve the linearity of throttle response; 1.3 Programming items (can be set by throttle stick or card LED parameters): (1) Brake setting: no brake/with brake; (2) Battery type: Li/NiMH; (3) Low-voltage protection mode: soft stop/hard off; (4) Low voltage protection threshold: low/medium/high; (5) Start mode: normal/soft/super soft start; (6) Timing: low/medium/high; (7) Restore the factory default values. 1.4 Comprehensive protection features: (1) Undervoltage protection: The program set by the user, when the battery voltage is lower than the protection threshold, the ESC will automatically reduce the output power. (2) Over-voltage protection: The input voltage exceeds the input range and it is not allowed to start, and it is automatically protected, and the warning "beep" is issued hastily. (3) Overheating protection: built-in temperature detection circuit, which can automatically reduce the output power of the ESC when the temperature is too high. (4) Remote control signal loss protection: the remote control signal is lost for 1 second to reduce the power, and then it will be turned off for two seconds when there is no remote control signal output. Package Includes: 1 x Electronic Speed Controller