Features: Right/ left, up/ down, forward/ backward, 360 turn around. 2 motors installed to control the static diving, propeller & rudder system respectively. Static diving system, enable the submarine to float & dive up to 0.7 meters depth. Micro size rudder system, enable submarine to rotate 360 clockwise or anti-clockwise. With a remote waterproof transmitter. Exercise your kid's mental ability and physical coordination. Built-in rechargeable battery, USB charging. If there are any problems, please contact our store in time. We will give you a satisfactory solution. Specifications: Item Name: Mini RC Submarine Main Material: Plastic Color Optional: White/ Blue Speed: 0.1m/s Dive Deep: 0.6-0.7m Frequency: Blue-40MHZ, White-27MHZ Battery: 3.7V/90mah Motor: Brush Motor Charging Time: 15min Working Time: 23-25min Remote Control Distance: Max 5m(Diving under the water 60-70CM) Remote Controller Battery: 4*AA Battery(not Included) Size: 15*6.8*4.5cm Note: * Don't over-charge or over-discharge batteries. Don't put it beside the high-temperature condition. Don't throw it into the fire. Don't throw it into the water. * There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding. Package Information: Package Size: 23*11*9.5cm Package Weight: 261g Gift Box Package Packing List: 1* Mini RC Submarine 1* Remote Controller 1* Battery(Built-in) 1* Charging Cable 1* User Manual