This is actually the Traxxas XL 2.5 Electronic Speed Control Waterproof for 1:16 E-Revo, Slash (Item No: 3024) Feature: For: 1/16 E-Revo, Slash Material: vinyl colors: Blue Simple one-button setup Patent-pending training mode Forward/Reverse/Brake Microprocessor control Waterproof design Effective low-loss MOSFET design Traxxas high-current connector Thermal shutdown safety Motors: Brushed Specification: engine Limit: 10-turn BEC Voltage: 6.0 Volts DC On-Resistance: 0.008 ohms PWM Frequency: 2300Hz Motor/Battery Wiring: 16-Gauge Input Voltage: 4-8 cells (4.8V to 9.6V DC) Length: 46.5mm Width: 26.5mm Height: 21.6mm include: XL-2.5 Electronic Speed Control (1 computer)