This is OEM product , Not Made by Olympus.
Full Two Years Warranty.
The HLD-4 Power Battery Holder for the E-5, E-3 & E-30 Digital SLR Camera houses one or two BLM-1 battery packs. This high-powered external battery power grip easily attaches to the base of the camera while supplying extra power so you can shoot all day long. The HLD-4 also improves focus tracking speeds in Continuous AF Mode, allowing you to track faster moving objects, and it is equipped with a shutter release button and other essential dials for easy operation during vertical-format shooting. And, like other Olympus E-System components, the HLD-4 is dustproof and splashproof.
