This is the Traxxas VXL-3s Waterproof Brushless Electronic Speed Control.                                                                                     FEATURES: Auto detects brushed, brushless or sensored brushless motor types                    Compatible with 4-cell NiCd or NiMH batteries up to 3S LiPo packs (11.1V)                                                                            EZ-Set(R) one-touch push-button set-up                                               Three drive profiles Sport, Race and Training mode                                   Training mode limits full throttle to 50% for beginning drivers                      Locked rotor protection if vehicle is stuck or motor is bound                        Battery over-voltage protection triggers failsafe if maximum input voltage is exceeded sensored motors motor sensor fails                                                                 Auxiliary fan output (fan not included)                                                                                                               INCLUDES: Traxxas VXL-3s Electronic Speed Control with 12 gauge motor and battery cables, three preinstalled 3.5mm female bullet motor connectors, Traxxas High-Current male battery connector, universal receiver connector and instruction manual                                                                                                           REQUIRES: Installing in vehicle and connecting to battery, receiver and motor                                                                                   SPECS:    Input Voltage 4.8 - 11.1V (4-9 NiMH, 2S-3S LiPo)                                   Motor Compatibility: Sensorless Brushless                                          Motor Limit: None                                                                  Battery Connector: Trasxxas High-Current                                           Motor Connectors: TRX 3.5 Bullet Connectors                                        Motor and Battery Wires: 12 gauge Maxx ccable                                      Continuous Current: 200A                                                           Peak Current: 320A forward and reverse                                             BEC Current: 6.0V DC                                                               Transistor Type: MOSFET                                                            On-Resistance: 0.00075 ohms                                                        PWM Frequency: 12,000Hz                                                            Thermal Protection: Two-Stage Thermal Shutdown                                     Weight: 3.88 oz (110g)                                                             Length: 2.29" (58.17mm)                                                            Width: 1.54" (39mm)                                                                Height: 1.2" (30.48mm) including heatsink