Features: Through radio remote controller, it can forward, backward, submerged, floated to the surface and rotate in all directions. Submarines can also be used as home furnishings when not playing. The product has high added value and is a professional submarine model with unique collection and ornamental value. Exercise your kid's mental ability, physical coordination and exercise children's hand-eye coordination. Waterproof design to prevent water from entering the hull. When the mini RC submarine touches water, it will start normally, when it leaves water, it loses power. Powerful, exquisite workmanship, charging for 1 hour, can be used for 10 minutes. Specifications: Item: Mini RC Submarine Material: ABS Battery: 3.7V 90mAh Battery Use Time: About 10 Minutes Charging Time: About 60 Minutes Remote Control Distance: About 6 Meters Remote Control Battery: 2*AAA Battery(not Included) Size: 12.3*4.1*3.8cm Package Information: Package Size: 15.5*7.5*9.5cm Package Weight: 259g General Box Package Packing List: 1* Mini RC Submarine 1* Remote Controller 1* Charging Cable 1* Antenna 1* User Manual