This is the Hobbywing EZRun MAX10 G2 140 Amp Sensored Brushless Waterproof ESC/3665SD Motor Combo. Using IP67 waterproofing and featuring a smart sensored brushless system this versatile combo is an excellent choice for 1/10th 4X4 Trucks and Monster Trucks. Features: The EzRun Max10 G2 ESC features an improved waterproof sensored cable interface and an upgraded sensored mode to achieve a great sense of control feel and perfectly matches the EzRun 3665 SD G3 motors. Supports Turbo timing adjustment of up to 32 degrees, and in combination with the EzRun 3665 G3, the maximum speed is 25% more with greater effect. The smart start-stop technology is introduced to the Max10 G2 ESC. The frameless fan will not be enabled to reduced noise and saving power. The fan will only work when the temperature rises to a certain level. Compared with the previous generation of the MAX10 ESC, the total capacitance of the capacitor is increased by 74% and is overheating protected. The functions improve the power delivery from the battery to the ESC to avoid it from overloading and causing capacitors to explode. Smart freewheeling technology enables the MAX10 G2 to have higher drive efficiency than the previous generation, resulting in lower operating temperatures and a minimum temperature of approximately 25°C lower than the previous generation. After connecting the ESC with the OTA Wireless module, you can view the data (throttle amount, voltage, current, temperature, speed and etc) in real time through the mobile app to know the running status; The history of the running status can also be viewed by data logging. Specifications: ESC: Continuous Current: 140A Burst Current: 880A Battery: 2-4S Lipo Built-in BEC: 6V/7.4V @ 5A(Switch-mode) ESC Programming: Independent programming port Motor Supported: Sensor and sensorless brushless motor Motor Limit: 3S Lipo: Kv <4000 3665 size motor 4S LiPo: Kv <2600 4268 size motor Application: 1/10 4X4 Short Course, Truck, Monster Truck Cooling Fan: Powered by BEC Size: 53x39.5x37.2mm (LxWxH) Weight: 120g (Including weight of wire) Motor: LiPo: 2-3S Motor Kv: 3200 No-load Current: 7.1A Diameter: 37mm Length: 65.8mm Shaft Diameter: 5mm Shaft Length: 16.5mm Pole: 4 Weight (g): 304.5 Includes: (1) EZRun MAX10 G2 140 Amp Sensored Brushless Waterproof ESC with XT60 Plug (1) EZRun 3665SD G3 Sensored Brushless Motor Sensor Cable