Talon 15: Miniature muscle. We packed as much brute power and intelligence into this tiny layout as we possibly could and came up with a 15 amp* controller with ability to sustain an 8 amp BEC! Talon 15 measures just 1.1" long and is under 0.6" wide! At nearly the size of a quarter, this ESC supports an outlandish 8 amp** peak BEC with output voltage of 5.5 VDC. Applications range from foamies to micro and sub-micro helis running up to 4S and pulling 15 amps. As with any Castle ESC, the Talon 15 offers Castle's industry-leading functions, not to mention easy programming using the Castle Link USB adapter, or the Castle Field Link Portable Programmer (sold separately). Input voltage MIN: 2S LiPo / MAX: 4S LiPo Max continuous amperage at full throttle: 15A* BEC: 5.5V / 8A peak** (3A continuous) Size: W14.7 x L27.9 x H8.1 Weight (w. wires): 7.2g Weight (w/o. wires): 3.4g Programmable using Castle Link USB adapter and free Castle Link Windows software.