To record HD video with the VIRB POV camera, you move the slider forward. The rechargeable lithium-ion battery can record up to three hours of video with one charge, and can be easily changed on the go. VIRB is durable enough to capture even the most extreme activities right out of the box. With the rugged external housing, VIRB can withstand accidental immersion in one meter of water for up to 30 minutes. An optional dive case is available for deep-sea adventures, as well as a wide variety of other rugged mounts to secure VIRB to boat rails and boat hooks. VIRB easily snaps into the mounts, and the teeth linkages tightly secure VIRB in place to prevent drooping and sagging in high vibration environments. There's also an available industry standard mounting adapter, making it easy for existing action camera users to get started with VIRB.