Feature:1. Compatible with No. of cells: 3-4S lithium batteries( not included).2. Low noise, less vibration, less heat generation, long service life.3. Brushless motor with high efficiency and sensitive power response.4. Light weight, will not bring burden to the RC racing drone, improve flight performance.5. Great choice for university professors and students who are interested in developing software for multicopter parts.Specification:Features:Compatible with No. of cells: 3-4S lithium batteries( not included).Low noise, less vibration, less heat generation, long service life.Brushless motor with high efficiency and sensitive power response.Light weight, will not bring burden to the RC racing drone, improve flight performance.Great choice for university professors and students who are interested in developing software for multicopter parts.Specifications:Item: 2205 2300KV Brushless MotorFramework: 12N14PNo. of Cells: 3-4SColor: Red and BlackLength: 31.7mmShaft: M5KV: 2300Max Thrust: 1024gDiameter: 27.9mmPropeller Suggested: HQ 5045 BNWeight: 30gPackage Information:Package Size: 12*8*3cmPackage Weight: 84gPlastic PackagePackage List:1* 2205 2300KV Brushless Motor(Reverse Rotating)1* 2205 2300KV Brushless Motor(Forward Rotating)Package List:1* 2205 2300KV Brushless Motor(Reverse Rotating)1* 2205 2300KV Brushless Motor(Forward Rotating)