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