he eZrun Combo B2 includes the following items: 1* 35A-SL brushless ESC 1* 9T (3650M sized) sensorless brushless motor 1* Digital LED Program card eZRun-35A Brushless ESC Specification: Output: Continuous current 35A, burst current 190A. Input: 4-9 cells NiMH/NiCd or 2-3 cells LiPo. BEC Output: 6V/1.5A. Resistance: 0.005 Ohm. Motor Supported: Sensorless Brushless Motor Suitable Brushless Motor: With 4-6 cells NiMH/NiCd or 2 cells Lipo: On-Road9T, Off-Road12T; With 6-9 cells NiMH/NiCd or 3 cells Lipo: On-Road12T, Off-Road18T; Suitable Car: 1/12, 1/10 on-road or off-road cars / trucks for normal race or sportful race. Size: 31.5 * 27.5 * 24mm. Weight: 30g(Without wires) EZRUN Series Sensorless Brushless Motor for 1/10 Car(Size:3650-M) Specification: Model: 9T/SL-3650M KV: 4300 Diameter(mm): 35.8 Length(mm) (Without Shaft): 50 Shaft(mm): 3.17 Shaft Length(mm): 15 Weight(g): 165 LED Program Card For Brushless ESC Specification: Size: 88mm (L) * 58mm (W) * 14mm (H) Weight: 40g. Input Voltage: 4.8-6V (If the ESC hasn't a built-in BEC, you must use an additional battery pack to supply the program card)