This is the Tamiya Forward and Reverse Electronic Speed Control. FEATURES: Compatible with stock motors down to 23 turns Current adjustment allows driver to choose from three adjustment speeds including mild setting for slippery conditions and quick setting for high grip tracks Reverse can be converted to braking function Three safety functions: Reduced voltage reduction safety circuit prevents loss of control Heat protection function Overcurrent protection function Receiver connector compatible with Tamiya, Futaba KO, JR, and Airtronics/Sanwa (blue) INCLUDES: One Tamiya Forward and Reverse Electronic Speed Control with Kyosho style battery connector, pre-installed motor leads, universal receiver connector, and instruction manual REQUIRES: Installing in model and connecting to motor and receiver SPECS: Length: 1.3" (33.5mm) Width: 1.1" (27.2mm) Height: 0.6" (14.3mm) Weight: 1.7oz (48g) with wires Weight 1.5oz (43g) body only Control System: High frequency wave drive Max Continuous Current: (FET spec) Forward 120A, Reverse 60A Power Supply: 7.2V - 8.4V (6-7 cells) Compatible Motor: R/C car motor over 23 turns Driving Frequency: 500Hz, 1kHz, 2kHz (with three steps) Receiver Output Voltage: 6V (input 7.2V) Receiver Output Current: 1A jxs 3/5/04 ir/jxs