ITEM NAME:MC-DC2 Shutter Release Remote Control Cable Cord for Nikon M&E Features: Prevent vibration : This remote cord can prevent vibration during long exposures, close-ups or continuous shooting. Halfway pressed button: The shutter release button of this remote cord can be pressed halfway for auto-focus and exposure metering. Shutter release button lock : A shutter release button lock is available which for long exposures shooting and continuous shooting. All electronic no batteries needed. Length of wire: 100 cm ( 3 ft. approx. ) Button lock: Available, Slide Style Package include: 1pc* Shutter Release Remote Cord.Shutter release button lock : A shutter release button lock is available which for long exposures shooting and continuous shooting. 1pc Shutter Release Remote Cord. Button lock: Available, Slide Style.