eMart Mini RC Electric Toy Remote Control Boat Submarine Ship Waterproof Diving in Water Gift for Kids - Blue Mini Sized Remote Control Submarine, It Can Diving into Water, Great for Gift Comes with Built-in Battery and USB Charger Cable, Easy for Charging Multi Function: Forward, Back, Turn Left/Right, Diving, Floating Upward Working Time: 15 - 20 Minutes, Product Size: 15 x 6.8 x 4.5 cm Controller Battery: 4 x AA Battery (Not Included); Color Yellow: Asin: B01EJ1LMVQ