Characteristics: Right or left, up or down, forward or backward, 360 rotation. Installed 2 motors to control the static diving system, propeller and rudder. Static diving system allows the submarine to float and dive to a depth of 0.7 meters. The micro size rudder system allows the submarine to be rotated 360 clockwise or counterclockwise. With remote waterproof transmitter. Exercise your child's mental abilities and physical coordination. Built-in rechargeable battery, USB charging. Technical data: Item Name: Mini RC Submarine Main Material: Plastic Optional color: white or blue Speed: 0.1m or s Deep diving: 0.6-0.7m Frequency: Blue - 40MHZ, White - 27MHZ Battery: 3.7V or 90mAh Motor : brush motor Charging time: 15 minutes Working time: 23-25 minutes Remote control distance: max. 5m (diving under water 60-70CM) Size: 15 x 6.8 x 4.5cm Note: x Do not overcharge or discharge the batteries. Don't put it next to the high temperature condition. Don't throw it on fire. Don't throw it in water. x There may be some deviations due to manual measurement or slight color difference due to shooting conditions. Package Information: Package Weight: 261g Gift package Packing list: 1 x Mini RC Submarine 1 x remote control 1 x battery (built-in) 1 x charging cable 1 x User Manual