Features of wireless and safe small high-definition magnetic portable camera: Suitable for shooting without affecting gimbal calibration Water, oil and scratches for high-definition images Magnetic design Osmo Pocket / Pocket 2 VND filter (2-5 steps) Rotate to adjust exposure effect, its power Equivalent to the superposition of four ND4, ND8, ND16 and ND32. These reduce the amount of light entering the sensor, allowing professionals to more accurately control the camera's aperture, exposure time, and sensor sensitivity settings. The filter uses German glass as the base, which has been ground and polished many times to obtain high-definition image capture. The filter is multi-layered on both sides and is waterproof and oil-proof, making it easy to keep clean. The filter's hard coating can also cause it to scratch. Ultra-light, does not affect gimbal calibration. It also features a magnetic design. Main material: aluminum, optical glass Package contents: 1 x HD camera