This is the ACE RC Veloci-RS Brushed 170A Car Electronic Speed Control. FEATURES: Adjustable to racing mode Compact size Real-time braking Fully proportional forward and reverse control Fail safe BEC system installed Digital high frequency for smoother power delivery, cooler running motors, and longer motor life For use with with stock motors 17T and up Multi protection for overheating and short circuit Standard (Tamiya) plug for battery Universal plug for receiver 4mm bullet connectors for motor On/off switch 18 month limited warranty beginning at date of purchase INCLUDES: One Veloci-RS Brushed 170A Car Electronic Speed Control Three capacitors Instructions REQUIRES: Compatible motor SPECS: Length: 49mm (1.93") Width: 36mm (1.42") Height: 28mm (1.1") including heat sink Weight: 71g (2.51oz) including heat sink Voltage Range: 7.2 - 8.4V On-Resistance: 0.004 ohms Momentary Load (1 sec): 400A Brief Load (30 sec); 230A Continuous Load (5 mins): 170A Recommended Motor: 17T or higher BEC Voltage: 5V BEC Current: 1.5A Pulse Frequency: 2KHz Reverse Mode: Yes (8 secs Limit) Set Up Procedure: Push Botton Mode Switch (Reverse/Brake): Yes Brake: Yes lmm 3.17.11 ir/jxs