The Spy Master Mini Submarine can go down to about 12 meters underwater at a speed of almost two kilometers per hour and with a battery that lasts for about 60-80 minutes. The Spy Master Mini Submarine enables the user to explore underwater and he/she don’t need to wear a cumbersome tank and BCD Jacket. It is safe and easy to use and training takes very little time. Depth control is via a control button which inflates and deflates a bladder attached to a scuba air tank. Steering is via a hand operated rudder control.