The SeaLife RM-4K offers brilliant 14mp still images and vivid 4K video in an incredibly small package that's easy to hold and use alone or with attached lights like SeaLife’s available range of Sea Dragon Photo and Video lights.
The ultra-compact removable inner camera and a robust external housing mounts easily to a light or light tray.  The easy, 4-button control system is easy to navigate and makes capturing underwater images and video an effortless process. The ReefMaster offers Wi-Fi sharing ability, so you can wirelessly preview, download and share pictures & videos to a smart phone or tablet with the free ReefMaster app.
The ergonomic housing is especially designed for use underwater, and is easy to hold and use even with one hand.  The tough and durable housing features a unique closing system with a "Pressure Lock" thumb screw that exerts the optimal amount of pressure on the housings O-ring seal. The waterproof housing encases the small RM-4K inner camera, and holds a powerful drying agent capsule called "Moisture Muncher" next to the camera that prevents internal fogging. With the expandable memory of the ReefMaster RM-4K, you can use Micro SDHC memory cards up to 128GB, ensuring you have room to shoot & save your video content. The ReefMaster RM-4K has a time lapse function, shooting at set time intervals and saves as video file or series of still images. Lighting is easy, use the ReefMaster RM-4K with Sea Dragon constant underwater LED photo/video lights (or other LED light sources). There's no flash or cable to sync to an external strobe. Simply turn your light on and adjust the intensity based on the subject, conditions and distance.
The compact RM-4K is easily expandable with popular SeaLife accessories, including one or two Sea Dragon Photo/Video/Dive lights, and available 10x close-up, super macro or wide angle lenses.  The 2.0" TFT color LCD display offers 230K resolution and is sharp and visible in all light conditions.