These series of water cooling ESC designed for RC boat. They are not only offer excellent performance they are also built with the highest quality components to ensure true-to-rating current handling and high efficiency operation. Phrases 1 Enter programming Mode: 1.Connect your motor and receiver to the speed controller, but do not connect the battery yet. 2.turn on your transmitter and move the throttle stick to the full throttle position (full up).please note: most futaba transmitter have the throttle channel reversed by default. 3.Connect you battery and controller will initialize with a musical tone. Phrases 2 programming: After 3 seconds, the controller will start beeping a sequence of tones a musical tone followed by one or more beeps. Each sequence represents a parameter that you can program and is repeats 3 times. The parameters are: Music tone + 1 beep: Optionas 1. Cell type and No. of Cells; Music tone + 2 beep: Optionas 1. Throttle setting; Music tone + 3 beep: Optionas 1. Brake setting/Throttletype(for Heli); Music tone + 4 beep: Optionas 1. Direction and Cutoff Type; Music tone + 5 beep: Optionas 1. Timing mode; User programming options: Cell Type: NiMH/NiCD/Lipoly/Li-ion Cell Count: 2S-4S/6-18NIMH Throttle Setting: Auto/Soft/Hard Brake: No Brake/Soft/Medium/Hard Direction: Clockwise/Counter Clockwise Cut off: Soft/Hard Timing: 1o/7o/15o/30o PWM: 8Khz/16khz Features: Water cooling. Waterproof design(Need to use 704 silicone rubber by yourself). This super simple boat series comes with a limited range of programming functions and are designed to be plug-n-play. A perfect ESC for those looking for something simple to use and economic. Specifications: Cont current: 60A Burst current: 70A BEC model: Linear BEC output: 5V/3A Recommend battery: Li-ion/Lipoly 2-4S;Ni-MH/Ni-Cd 6-18NIMH Cooling: Watercooled ESC weight: 52g ESC size: 73mm * 36mm * 15mm Package information: Package size: 10 * 5 * 2cm / 3.9 * 2 * 0.8in Package weight: 56g / 2oz Plastic bag Package list: 1 * 60A Brushless Water Cooling Electric Speed Controller ESC