Jujuism Mini Remote Control Nuclear Submarine RC Race Boat Ship High Speed Waterproof Diving in Pools Lake Ponds, Best Gift for Kids Boys(Blue)

Pls use usb to charge with computer or use remote control to charge. Cannot use the usb connection plug to charge, will burn out the built-in battery. 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. Charges with computer not plug. (Plugs burn out built-in batteries easily) Specifications: Material: Plastic + Electronic Component Charge Time: 20 minutes Playing Time: 15 minutes Remote Control Distance: 5 m Battery for Car: Included, Rechargeable Remote Controller Requires: 4 x AA Batteries (Not Included) Item Size: 12.5 x 3.5 x 4.5 cm; package size: 15.5 x 7.5 x 9.5 cm Package Included: 1 x RC Submarine 1 x Remote Controller 1x Metal Telescopic Antenna 1x 3.6V 120mAh NI-MH Battery (built-in) Tips 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. Submarines must play in water. It is charged very quickly. You can't see if it's charging or not. Charging is the same as usual. As long as it touches water, it will start normally. It's not broken, it just needs to start in water. Q&A Q: How do I charge? A: You can use remote control or USB charging. If the remote control cannot be charged, it may be that the remote control battery is dead. You can charge with USB. But the usb must be connected to the computer to recharge. If the plug is directly connected to charge, it will burn out the built-in battery. Q: Why the submarine is not bright? A: You put it in the water at first. It will light up, and then you can operate it. Q: Why the submarines work intermittently? A: First you have to go full charge. Then control the distance not too far from it.