Digital Camera with Underwater Kit. The SJCAM is identical to a GoPro at a fraction of the price.
I have used it for years as an underwater camera, but due to my age (76) and physical condition, I no longer can use or need it.
I have all the original parts plus the floating attachment and extra batteries (3 total) and battery charger. The USB jack is damaged, but I use a flash card (not included) to transfer the data.