The dust, splash and freeze-proof Olympus HLD-7 Battery Grip has been
exclusively developed for the use with the Olympus OM-D E-M1 compact
system camera. The grip is designed to extend the overall battery life
for longer shooting times and provides enhanced stability. Furthermore
this accessory is also equipped with two control dials and two function
buttons. For use with the Olympus BLN-1 batteries (not included).