Item Type: Brushless Motor ESC Kit Motor: Shell Material: Aluminum Alloy Color: Red Product Size: Approx. 47 x 28mm / 1.9 x 1.1in KV Value: 4400KV Power: 800W Maximum Speed: 50000 Number of Rotor Poles: 4 Shaft Length: Approx. 15mm / 0.6in Shaft Diameter: Approx. 3.175mm / 0.1in Connector: Approx. 3.5mm / 0.1in Gold ESC: Continuous Current: 35A Maximum Current: 120A (10 seconds) Product Suitable Battery (not included); 2 to 3 Cells Lipo/4 to 9 Cells NiMH ESC Size: Approx. 41 x 27.5 x 25.5mm / 1.6 x 1.1 x 1.0in (without cable) Motor Connector: 3.5mm / 0.1in Applicable: For Traxxas, for HSP and Other Brands for 1/12 Remote Control CarPackage List 1 x Motor1 x ESC1 x User Manual 1Strong Torsion: The brushless motor has strong resistive current capability and 4 pole high torsion rotor design to ensure strong torsion 2CNC Machining: The RC brushless motor has CNC machining 6061 T6 aluminum front and rear covers, with high temperature resistant copper coils 3Waterproof and Dustproof: The brushless motor has waterproof and dustproof components, which are durable and have good heat dissipation, with stable output power 4Durable Components: The 35A ESC features durable components to ensure efficient operation. with excellent start up, acceleration and linearity, and internal timing can be easily changed to make ESC suitable for various motors 5Protection Function: The ESC has multiple protection functions such as low voltage cut off protection, overheat protection, throttling signal loss protection and so on. with a wealth of programmable items for a variety of RC tires and tracks