The Black Marlin MX is a micro-size boat that's the ideal size for racing across a swimming pool or local pond. The impressive speed is generated by a water-cooled 180-size motor in combination with an included 360mAh Lithium-Ion battery pack. Even better, if going too fast or running in choppy water causes the boat to flip, the self-righting feature quickly and automatically turns the boat right side up, so you can continue your run with minimal interruption. The MX is an RTR (Ready-To-Run) boat with a durable ABS hull that comes pre-painted with a sleek, aggressive trim scheme that gives it an even faster look. It arrives 100% factory-assembled out of the box with a 2-channel, 2.4 GHz proportional radio system that features precision steering control through the waterproof 9-gram steering servo and linear throttle feel supplied by an electronic speed control with reverse. Key Features: Sleek, fast, and aggressive look Self-Righting feature Durable ABS hull 2S 360mAh Li-ion battery pack provides extended run-time Powerful 180-size water-cooled motor 9g waterproof proportional steering servo Pre-installed 2-in-1 electronics with ESC and 2.4GHz receiver RTF includes 2.4GHz transmitter Specifications: Hull Length: 10" (254mm) Overall length: 11 5/8" (300mm) Width: 3" (80mm) Height: 2 5/8" (6.7cm) Weight: 6.6 oz. (187g) Battery: 7.4V 360mAh Li-Ion w/USB Charger Motor: 180A brushed water-cooled Transmitter: Pistol-grip 2-channel, 2.4GHz Servo: 9g waterproof proportional On-Board Electronics: 2-in-1 combo w/ ESC & 2.4GHz receiver Items required for completion: AA alkaline batteries (4) for TX