Motor Compatibility: Brush Fwd/Brk/Rev: F/Drag Brakes/R (crawling modes); F/B/R (basher mode); F/R (servo mode) Input Cells: 2-3S LiPo or 4-9 NiMH Size: 1.15" x 0.95" x 0.66" (29.0 x 24.3 x 16.8 mm) Weight (w/o wires): 0.64 oz. (18.1 g) On-Resistance : 0.0013 ohms (Eiger); 0.00036 ohms (Eiger Pro) Motor Limit (540): Eiger: 20T or higher (2S); 35T or higher (3S) brushed motor Eiger Pro: 20T or higher (2S or 3S) brushed motor Motor Limit (380): Any 380-size brushed motor BEC: 6V DC / 2A Wire Size: 14G Super-Flex Copper-Strand Silicone Wire Battery/Motor Plug: Eiger: Tamiya-style battery & gold-plated Bullet motor plugs factory installed Eiger Pro: Gold-plated Bullet motor plugs factory installed. No battery plug. Status LEDs : 4 (multi-colored)