Brushed Speed Control the Xtra Speed Controller range, these new ESCs have been designed to suit Li-Po, together with Ni-Cad and Ni-MH batteries Use Aircraft Function Forward/brake Break programable Frequency 1.3KHz Continuous Current 35A On-Resistance 1.75m ohms Input Voltage Nicd: 5-12 cells Li-Po: 2-4 cells B.E.C. 5.0v/3.0A Battery - type setup. Jumper plug Low batt. protection Yes Temperature protection - Safe Start Protection Yes Electronic Switch Yes Batt-Motor Cable 1.68mm2 Rx cable 0.3mm2