Features: Premium Material: This electric is crafted from premium plastic, solid and durable. Remote Control Submarine: This mini submarine can dive into the water with instructions from the remote control, just like a real nuclear submarine sailing in the ocean. Water Activated: When putting the submarine into the water, it will be activated. When it leaves the water, it will turn off. Safe and energy-saving. Multifunctions: This 4-channel remote control can go forward (diving), go backward (surfacing), turn left, and turn right. Easy To Charge: The submarine integrates a built-in rechargeable battery, and it can be charged by USB charging cable. Specifications: Item Name: Mini Remote Control Submarine Main Material: Plastic Product Battery: 3.7V/160mAh Lithium Battery Remote Control Battery: 1.5V*2 (AAA) (Not Included) Charging Time: About 40 Minutes Driving Time: More Than 5 Minutes Remote Control Distance: About 6 Meters Charging Method: USB Cable Charging Color: Yellow Size: 9.8*7.5*5.4cm Package Information: Package Size: 15.5*7.5*9.5cm Package Weight: 292g Package List: 1 x Submarine 1 x Built-In 3.7V/160mAh Lithium Battery 1 x Remote Control 1 x USB Cable