Features: 1. Voltage 4.8V – 29.75V 2. 4—12 NIMH 2-7LIPO 3. IR 0.003 MR (30A), 0.002MR(50A),0.0007(100A) 4. High End MosFet 5. Protect voltage 3.0v/cell LIPO 6. PWM 8K/16K/32K 7. Support most brushless sensorless motor 14pole motor max 30000RPM 8. Waterproof 9. BEC 5V 2A, Burst 3A, support large servo Additional features: 1. Break power adjustable 2. Reverse (25%/50% reverse power) 3. Support hill start 4. Throttle position error prevent 5. Auto throttle range calibrate 6. Signal error power off 7. Alarm on RX signal error/lost 8. Multifunction adjust motor Important notice: 1. This ESC design for battery use only. Not for other power source, otherwise could damage the ESC or power source. Recommend use correct 4-12NIMH or 2-7Lipo fully charged battery. System will be cut off when voltage is too low. 2. This device for RC use only not for manned aircraft. 3. This device is high power electronic device, must have good cooling system. 4. ESC build in voltage detect. Must insure battery can output correspond current. Shorten the wiring as possible. 5. Not allow to use one ESC with two motors 6. Use good quality Transmitter, some low quality transmitter middle position recognize error 7. Use good quality standard motor. Otherwise could be not compatible 8. For boat water cooled use only, place in sealed water proof cabinet. User need to add waterproof when the ESC could contact water. Seller not responsible for using in other circumstances 9. If not compatible with your system, not the quality problem, seller not responsible for return.