4.92 x 1.38 x 1.77 inches

【High Simulation Submarine】Waterproof ABS plastic parts are durable and smooth. Exquisite workmanship, mini and lightweight. It’s cool and exquisite appearance gives you a vivid feel for the real submarine. You can't see if the submarine has electricity. When you get the submarine, you put it in the water. Its lights will turn on. It is charged very quickly. You can't see if it's charging or not. Charging is the same as usual. When it touches water, it will start normally. It's not broken. 【Waterproof Design】There are two led lights in the front which are very visible in the dark, So you know where the sub is underwater. There are two rubber drain plugs in case you get water inside the body of the boat. The submarine has two metal joints on its head to protect it. When it touches water, it gets electricity, and when it leaves water, it loses power. It just needs to start in water. Charges with computer not plug (Plugs burn out built-in batteries easily). 【Super Easy To Control】This ship is 6 Channel design. It can easily move forward and backward, turn left and right, diving and surface. The middle propeller controls floating and dive. Back propeller control submarine turn forward, turn backward, turn left and turn right. When it is charged, the light may turn on and then off, or it may not light. This is normal. Whether or not it's light, it's charging. Please don't charge the submarine with high power battery.