Cool shape, colorful, mini size. It is suitable for indoor and outdoor play. Infrared signal is not interfered. It is safer to play without water and electricity. It can go forward, backward, turn left, turn right, ascend and descend. It acts the same way as a real submarine. The remote control submarine, which can dive into the water tank bathtub, is a good gift for children. The highly simulated military nuclear submarine model will be loved by children. Specification: Color: blue, white Material: plastic Size: about 15*6.8*4.5cm Remote control battery: 4*1.5AA (not included) Body battery: 3.7V Remote control distance: The remote control distance is 5 meters when diving 60-70CM underwater Life time: 23-25 minutes Body battery capacity: 3.7V/90mah Li-ion Body battery voltage: 3.7V Life time: 23-25 minutes Package List Remote control submarine*1 Remote control*1 Manual *1 Charging cable*1 Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 1-2cm differs due to manual measurement. 1[Remote Control Submarine] This remotely controlled submarine can be driven on the surface or dived into the water according to the instructions of the controller, just like a real nuclear submarine sailing in the ocean. It& 39;s fun to play and a great gift for children. 2 [Multi-function] It is a 6-channel remote control toy, which can go forward/backward, turn left/right, dive, and float upwards. There are also two navigation lights on the submarine& 39;s head, which will light up when they are navigating in the water. 3 [Water start] The submarine has no switch. After putting it in the water, the submarine will be activated and the headlights will automatically turn on. When it leaves the water, it will shut down. Safe and energy saving. 4 [Easy to Charge] The submarine has a built-in rechargeable battery, which can be charged via a USB charging cable. The remote control requires 4 AA batteries. (did not include) 5 [Widely Applicable]: It can be used in bathtubs, swimming pools, lakes, and swimming pools. This submarine is very interesting. The mini boat is the best gift for children, boys, girls and even adults. It can help them think. Coordinating brain and hands.