Feature: 1. Durable Material: Made of high quality materials, it is not only safe, washable and flexible, but also odorless, stable and not easy to break. High strength materials, the blade has strong bending and fracture toughness, high pneumatic efficiency, low power consumption and strong durability. 2. Aerodynamic Design: It enables the aircraft to have a good flight speed, and the propeller adopts a new aerodynamic design to make the flight quieter, more efficient and longer. Bring you a pleasant and wonderful remote control flight experience and have fun in parks, lawns, yards, etc. 3. Comprehensive Protection: It has the functions of low pressure cut off protection, overheating protection and throttle signal loss protection. 4. 30A ESC Function: With the function of safety deployment and throttle calibration, and supports a variety of procedures and methods. 5. High Compatibility: Compatible with lithium and nickel cadmium batteries. Brushless motors can be changed for different times. Specification: Item Type: RC Aircraft Multicopter ESC Kit Material: Aluminum Alloy, Rubber, Plastic, Electronic Components Weight: Approx. 125g / 4.4oz Product Model: XXD HW30A 30A ESC Power Input: 5.6V-16.8V (2-3 x Lithium Polymer Batteries Or 5-12 Nickel Hydride Or Nickel Cadmium Battery) BEC: 2A Constant Current: 30A (Maximum 40A Less Than 10s) Product Model: 1045 Positive And Negative Propeller Propeller Length: 255mm / 10.0in Product Model: A2212 Brushless Outrunner Motor Overall Dimension: 27.8 x 27mm / 1.09 x 1.06in Output Shaft Diameter: 3.17mm / 1.25in KV Value: 930KV Applicable To: Fixed Wing, Four Axis Model, Etc . Package List: 1 x Brushless Outrunner Motor4 x Screw4 x Accessory1 x ESC2 x Propeller2 Set x Adapter Ring Note: Display calibration is inconsistent and the colors of items shown in photos may be slightly different from the actual objects.