The XPS Micro ESC uses the latest SMD-MOS FET s. It is a forward.reverse speed control with switchable forward only racing mode. It also features real-time braking and plug and play set up. The compact size fits into most vehicles. Specifications Voltage input 4.8-8.5 volts Internal Resistance 0.0045ohm Momentary Load (1 sec) 50A Brief Load (30 sec) 30A Continuous Load (5 min) 20A Recommended Motor Micro Motor BEC Voltage 5v BEC Current 1A Frequency 2.8KHz Reverse Yes Overload Protection Yes Setup Procedure Digital/Push Button Mode Switch (Reverse/Brake) Yes Weight 31g Case Dimension (L x W x H) 26 x 25.6 x 15.6mm