How to Use: 1.Put batteries in the set into ship's battery compartment and plug in. 2.Put batteries into controller and start controller. 3.Press accelerator, then the ship will move forward. Specification: Item Type: RC Boat Material: Plastic+Copper+Stainless Steel Hull Material: Plastic Color: Red and Black Ship Battery: 11.1V 1500mAh Lithium Battery with overcharge and over discharge protection (included) Charging Time: 180min Charge Voltage: 110-240V Use Time Between Charges: 7min Controller Battery: 4 x 1.5AA (not included) Controller Frequency: 2.4G Remote-controlled Distance: 100m/109.4yd Function: Full speed forward/backward, turn left/right, low power alarm, speed up to 40KM/H, motor water cooling system, brushless cooling, auto course correction. Age: For 14+ Weight: Approx. 1465g/3.2lb Package List: 1 x RC Ship 1 x Controller 1 x Compatible Batteries 1 x Charger 1 x Voltage Stabilizer 1 x Cross Screwdriver 1 x Hex Wrench 1 x Bumper 1 x Spare Propeller 4 x Accessory 2 x Instruction Note: 1. Please allow 1‑3 mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.