The olympus HLD-7 Power Battery, Grip for E-M1 is designed for use with the
OM-D E-M1 Micro Four Thirds digital camera. The HLD-7 features a shutter
release, two control dials and two function buttons for shooting vertically, in
order to afford the same ease of operation you enjoy when shooting in
horizontal position. Having an extra Battery, in the grip with another in the
camera, you can Cap,ture approximately 680 shots per charge. Its dust- and
splash-proof design also complements the weather resistant construction of the
E-M1 for shooting in inclement conditions. Furthermore, Battery, and grip
sections are separated, and an optional Grip Strap, GS-5 is available for added
security.