Experience the  thrill and excitement of the underwater world with Thunder Tiger's first  underwater diving machine, the Neptune SB-1! This ready to run  static-diving submarine comes equipped with all the required hardware  for diving and resurfacing functions which includes: T6M Sea Commander  radio system, all-in-one speed control, ballast control, 12V motor and  12V sealed lead-acid battery. With all the running hardware preinstalled  in the inner hull tub, this Neptune SB-1 is highly detailed with a  beautiful eye-catching yellow outer hull. You can even purchase an  optional 2.5" LCD video receiver to help you navigate the waters, which  mounts directly to the top of the T6M radio controller. The Neptune SB-1  will let you explore and enjoy the mysteries of the underwater world.