low noisy,low power consumption ,long range and long duration.saving energy and saving power. 1.THE BOAT IS MADE OF FRP, CORROSION RESISTANCE,ANTI-OXIDANT AND DURABLE.2.AUTOMATIC FREQUENCY CONTROL DEVICE.NEVER MUTUAL INTERFERENCE EVEN MANY BOATS SAILING TOGETHER.500M LONG REMOTE CONTROL DISTANCE.3.GOOD WATERPROOF EFFECT.SAIL AS USUAL EVEN IF MODERATE BREEZE.4.LOW NOISE,LOW POWER CONSUMPTION, ...