Water prevention: Enjoy a smooth sailing experience with this remote-controlled boat with waterproof rubber to protect internal electronics. It also has a larger side casing to block water inlet, and a watertight cargo opening and boat bottom to improve water resistance. Battery not included Easy to use: The water rudder and two propellers of this remote-controlled boat provide a powerful flow of energy that allows it to glide smoothly across the water. It has a 2.4GHz system that ensures stable and interference-free control. Smart Toys: This remote control boat is a fun preschool toy for the little ones. It has a dynamic appearance and a simple remote control. It improves mental agility and hand-eye coordination. It stimulates people's natural curiosity about how objects work and move. Nice gift: this remote control boat is a pleasure to play in any aquatic environment, such as lakes and swimming pools, both outdoors and indoors. You can do a friendly run with your friends or a fun time with your family. It is easy to use and ideal for ages 3 and up.