AMTopShow 27Mhz High Speed Remoto Radio Control Electric Racing Boat Toys RC Boat Toys (White) Length: 5.9 Inches (15cm) Width: 2 Inches (5cm) Height: 1.4 Inches (3.5cm) 4*1.5V AA batteries needed for the remote controller There is a small lithium battery inside the boat, and what's amazing is you can recharge the boat again and again for unlimited use. 27Mhz High Speed Remoto Radio Control Electric Racing Boat Toys RC Boat Toys (White) Super high speed bring you a lot of fun; Perfect size for pool racing; Water cool system included; Waterproof design for electric equipment