Brand new and high quality.<br />Great accessory for toys.<br />Look no further, buy it now.<br />Output: Continuous current 40A, short-time current 55A (not less than 10 seconds); <br />Power input section 2-4 cells lithium battery or 5-12 NiMH / NiCd battery pack; <br />BEC Output: 5V @ 3A (built-in switch stabilivolt mode BEC); <br />Throttle signal frequency range (Refresh rate): 50Hz-432Hz; <br />Maximum speed: 2-pole motor 210000 rev / min, 6-pole motor 70 000 rev / min, 12 pole motor 35 000 rev / min; <br />Size: 68mm (length) x 25mm (W) x 12mm (height); <br />Weight: 43g (with heat sink); <br />Safety electrical function: <br />When power is turned on, regardless of the throttle stick position, the motor will not start immediately to avoid personal injury; <br />Throttle calibration function: remote control to adapt to differences between different throttle range, improve the linearity of throttle response;<br />1 x Brushless ESC<br />1 x English user manual<br /><img src="http://img6.eachbuyer.com/x23/p18/bj907_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p18/bj907_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p18/bj907_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p18/bj907_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x23/p18/bj907_5.jpg" />