1. Before use, close the battery compartment cover and the USB-C port cover, and tighten the Lens Protective Cover. It is recommended to install the Waterproof Case for long-duration underwater shooting or in environments with high water impacts or pressure. Osmo Action 3 and its Waterproof Case have an IP68 waterproof rating. Do not use the camera in hot springs or expose it to corrosive liquids. 2. EIS is not supported in Slow Motion and Timelapse modes. HorizonSteady is only available when the video resolution is 1080p (16:9) or 2.7K (16:9) with a frame rate of 60fps or below. HorizonBalancing is only available when the video resolution is 1080p (16:9), 2.7K (16:9), or 4K (16:9) with a frame rate of 60 fps or below. 3. Tested in a 25° C (77° F) laboratory environment while recording 1080p/30fps video with EIS disabled and the screens off, and should be used for reference only.