This GoPro Hero 9 Black does not work correctly. As far as usage, it has been used less than an hour since new. It was only used for outdoor videos. Never used under water and there was never any damage to it when I put it away. I didn't use it for around 2 years after that, maybe even longer. I got the camera out figuring I'd charge up the batteries and use it but when I turned it on, the back screen would not turn on. The front screen would turn on but freeze up sometimes. I figured I'd buy another original GoPro battery and see if that made any difference. It didn't. I noticed on the front screen that it doesn't show a battery or SD card being installed but they were. Cosmetically, other than the dust, the camera is in perfect condition. No scratches on the case or either of the screens. I'm selling it with the new battery that I purchased. To say that I'm disappointed in the camera would be an understatement. I paid over $300 for it new. To compare, I just pulled out my GoPro Hero 2 and charged up the batteries. It works fine. That camera is easily over 10 years old and I haven't used it in at least 5 years. The 9 took great videos when it worked. I have the SD card that was in it and viewed the videos. If anyone would like to purchase this without the new battery, let me know and I will lower the price by $20 without the battery. There has not been any repair attempts on the Hero 9. As stated, it is in 100% as-new condition cosmetically.