2.4 GHZ High Speed: 2.4 GHZ frequency controller supports multiple rc boats to race synchronously! The max speed up to 15 MPH(25km/h) allow you blow other remote control boats out of the water! Ideal rc racing ship toys for Pool and Outdoor!,Capsize Recovery Feature: Self-Righting Hull Design gets the racing boat back to the game quickly while the boat is capsizing .,Auto-Corrects Yaw: Internal Navigation Rudder Design allows the rc boat correcting the yaw automatically which makes a easy sailing.,Poor Signal Alarm: The transmitter of the rc boat will issue alarm sound for you to make a return voyage or stop the boat on time while the signal becomes poor.,Low Battery Alarm: The controller will sound alarm to remind you of battery charging or replacing while the battery is in low power.