- Rotational speed: 2200 KV<br />- 2~3S Li-ion battery<br />- Internal resistance: 0.52 ohm<br />- Max effective current: 2~6A、 >70%<br />- Max working voltage: 8.5V<br />- IO: 0.5A/10V<br />- Shaft diameter 2mm<br />- Shaft length 8mm<br />- Comes with mounting bracket、 propeller adapter and screws<br /><br />                                                                                                                                Dimensions: 1.18 in x 0.71 in x 0.71 in (3.0 cm x 1.8 cm x 1.8 cm)<br />Weight: 0.92 oz (26 g)<br /><br />