Traxxas 57076 Spartan Brushless Muscleboat, Colors Vary 30 mph with NiMH or 50 mph on 6S LiPo (sold separately) 36" deep V hull for stable high speed performance Watercooled, waterproof VXL 6s Marine speed control; 6S LiPo compatible with built in Low Voltage Detection Velineon 540XL high output brushless motor with high flow water cooling jacket NEW TQi 2.4GHz radio system and 5 channel receiver, True 36" Deep V