Spectrum Firma 150 amp brushless smart ES C spmxse1150. Brand new unopened box. Firma Smart ESCs combine "plug and play" simplicity with the ability to communicate with other Smart Electronics together, creating the best performing RC system for your vehicle imaginable.

Features: Waterproof, fast powerful 32-bit ARM M4 processor, multiple options for easy programming, Button programming, smart ESC programming box, multi-point protection, over current protection, automatic lipo low voltage cut off, thermal protection, ect., ect.