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 Motor Framework: 12N14P No. of Cells: 3-4S Color: Red and Black Length: 31.7mm Shaft: M5 KV: 2300 Max Thrust: 1024g Diameter: 27.9mm Propeller Suggested: HQ 5045 BN Weight: 30g Package Information: Package Size: 12*8*3cm Package Weight: 84g Plastic Package Package 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)