Long-lasting use: the design of the battery access interface makes it easy to charge and insert the battery. The battery access is made of durable ABS material that's hard to break, guaranteeing a long service life. Water prevention: enjoy a smooth sailing experience with this remote-controlled boat featuring waterproof rubber to protect the internal electronics. It also has a larger side shell to block water ingress, and a watertight loading opening and boat bottom to improve water resistance. Easy to use: this remote-controlled boat's water rudder and twin propellers provide a powerful flow of energy, enabling it to glide smoothly over the water. It features a 2.4 GHz system for stable, interference-free control. Smart toys: this remote-controlled boat is a fun preschool toy for little ones. It has a dynamic appearance and simple remote control. It improves mental agility and hand-eye coordination. It stimulates children's natural curiosity about how objects work and move. Great gift: this remote-controlled boat is a pleasure to play with in any water environment, such as lakes and pools, indoors or out. You can have a friendly race with your friends or a fun time with your family. It's easy to use and ideal for ages 3 and up.