This is the Tekin RS Brushless Sensored ESC. FEATURES: QuickTune One-Touch Programming HotWire PC Programming Compatible Fully Proportional Forward/Brake/Reverse Solder Posts for Easy Wire Management Runs Brushless and Brushed Motors Runs Sensored and Sensorless Motors On-Board Temperature Indicator Lipo Safe with Multiple Voltage Cutoffs Sensor Plug for Precise Commutation LCD: Lightweight Chassis Design HDAC: High Density Copper FET Boards DGF2: Digital Glitch Filtering V2 RS-232 Digital Communications Protocol Program Features; Drag Brake (13 steps) Brake Strength: 13 steps Current limit: None, 12 steps Neutral Width: 13 steps Throttle Profiles: 7 choices, mild to aggressive Brushless Modes: Fwd/Brk, Fwd/Rev, Rev Delay Brushed Modes: Fwd/Brk, Fwd/Rev Adjustable Timing Voltage Cutoffs: None, 2S, 3S, custom INCLUDES: Tekin RS Sensored Brushless Speed Control REQUIRES: Sensor/Sensorless Brushless or Brushed Motor SPECS: Input Voltage: 4-9 cells NiCd/NiMH, 2-3S Lipo Motor Limit: RS Brushless: 5 turn RS Brushed: 8 turn On-Resistance: RS Brushless: 0.0003ohm RS Brush Fwd: 0.0001ohm RS Brush Fwd/Rev: 0.0003ohm BEC: 6.0V/3.0A Weight: 2.0oz/58g with wires Dimensions: 1.0x1.3x0.45" (24.5x33x11.5mm) cnh 9/11/08 ir/jxs