Feature: 1. DUAL PROPELLER: This toy comes with a dual propeller design with a metal shaft and professional large twisting propellers that are aerodynamic and can be played with successfully. 2. WATER SENSOR: The engine will start only when the copper shaft of both propellers detects water. The boat can also be tested with a "touch switch", suitable for swimming pools, small ponds, rivers and lakes. 3. RC CONTROL: High level of control, with numerous radio frequency and remote control options to help users steer the ship forward, backward, left turn, right turn high and low speed switch. 4. EDUCATIONAL VALUE: This toy can provide children with hands on experience in navigation and engineering, including learning how to read a compass and adjust the speed of the ship. 5. PLEASANT MATERIAL: Durable and long lasting plastic materials, ensuring that the toy can withstand rough play and accidental collisions without breaking apart. Specification: Item Type: RC aircraft boat toy Material: Plastic Product Size: Approx. ship length: 16cm / 6.3in remote control: 13cm / 5.1in Battery: remote control 1.5V AAA batteries x 2 (battery not included) Ship: Lithium battery 3.7V x 150MAH (battery included) Endurance Time: About 17 minutes Charging Time: About 30 minutes Remote Control Distance: 20-30 meters. Package List: 1 x Simulation Aircraft Boat Model 1 x Remote Control1 x Manual1 x USB Cable1 x Screwdriver