Features For Esc: 1. Waterproof And Dustproof At AllWeather.(Note: Remove Cooling Fan Before Using Esc In Water; Clean And Dry Immediately After Use To Avoid Joint Rusting.) 2. Designed For Rc Cars, With Excellent Start, Acceleration And Linearity. 3. Compatible With Sensorless And Brushless Motors. 4. Strong Resistance To Current And Good Heat Dissipation Performance. 5. Multiple Protection Functions: LowVoltage CutOff Protection/Overheating Protection/Throttle Valve Signal Loss Protection/Motor Blocking Protection For Lithium Battery Or Nickel Battery. 6. Easy To Program And Compatible With Pocket Program Cards. Specification: Material: Metal And Electronic Components Color: As Pictures Shown #2030 Motor Kv: 4500Kv Model: 2030 # Esc Model: 25A&Nbsp; Package List: 1 * Motor 1 * Esc 2 * Manual