The new ergonomic battery holder HLD-9, designed to be frost-resistant (-10 °C) as well as dust and splash-proof, is particularly practical and reliable when used with the Olympus OM-D E-M1 Mark II. With the HLD-9, the photographer has a powerful lithium-ion battery BLH-1 in the camera and another in the battery holder. The HLD-9 battery holder features the same arrow buttons, two control dials, and two function buttons at the back as the camera, ensuring that there are virtually no differences in the controls, whether you are using the camera in landscape or portrait orientation. The optional AC-5 power adapter is suitable for studio shoots or other situations where the camera is used for extended periods, so you don't have to worry about the battery level. You can also attach the optional GS-5 grip strap to optimize ergonomics when using a telephoto lens, while also allowing for the attachment of a shoulder strap.