Voyager 400 sailboat is powered by the wind, but it also comes with a motor for those times when there is not wind! It is ideal for entry-level sailing enthusiasts when entering the hobby. The Voyager comes with all the components preinstalled, requiring no assembly at all. Everything needed to sail is included in the kit, all you need to do is add 4*AA batteries to the transmitter, charge up the included rechargeable battery and go sail! It's also a sharp display piece with a display stand included. The 2.4GHz 2-channel transmitter controls the sail angle and the rudder displacement. The battery charger is built into the transmitter. With the Voyager 400 you can explore wind navigation science! Length - 15.75" Width - 4" Height - 26.5" Scale - 1/30 Servos - 2x 9 gram Rechargeable Battery - 3.7V, 250mAh, 1S Note: This product cannot be returned to the store. Customer service is available through PlaySTEM.