This is a BF outlet (goggle plug type) that can be used in places like the Maldives. When going on a diving cruise to the Maldives, you can plug in Japanese outlets as they are, but the construction was often poor, and they would fall out in the morning. It was very troublesome if camera batteries weren't charged, so I always used this outlet. Connecting through a dedicated outlet provides very stable power, so I recommend it. The item for sale is as shown in the photos.