Features:This is THE BEST 30A ESC for multirotor.This hardware, with the SimonK firmware, gives you the perfect solution for multirotor use.Highest efficiency 100% N-FET design.Highest accuracy with Crystal Oscillator (Temperature won\'t affect the PWM operating range like other cheap ESC\'s).No low voltage cutoff, because any cutoff in a multirotor = crash.No over temp cutoff, because any cutoff in a multirotor = crash.Super high refresh rate, no buffering of the input signal, resulting in more than 490Hz response rate.16KHz motor frequency, giving fastest response of the motor, and quietest operation as well (no 8KHz squeal).Super simple, foolproof operation! Nothing to program other than the throttle range.Specification:Max cont.current: 30AMax. current: 40A (10s)Voltage: 2-3S lixxBEC: 5V/3AItem size: 50 * 25 * 8mm / 2.0 * 1.0 * 0.3inStyle: HLW30A0043A (without plug), HLW30A0043B (with plug)Net weight: 25 gPackage weight:35 gNOTE (SimonK): Before you buy these, you should make yourself familiar with the somewhat experimental nature of the SimonK firmware. This software pushes the motor response to the limit, so there may be motor and prop combinations that won't work. 1 X Brushless ESC Firmware Drop Shipping Service.1.There is no limited stock to fulfill the orders on a daily basis.2.For USA/CA /RU the shipping is quickly.3.Priority shipping,fast shipping in 48 hours.4.No invoice or receipt or promotional materials included. 1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO) 2. Orders processed timely after the payment verification.3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.4. The images shown are not the actual item and are for your reference only.5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit time may vary, particularly during the holiday season.6. If you have not received your order after 30 days from payment, please con