What batteries does the Ambra Remote Controller require and how do I install them?

The remote controller requires two dry batteries of type R03/LR03 (3.0V). To install, slide the back cover downward to expose the battery compartment, insert the batteries matching the (+) and (-) ends with the symbols inside the compartment, then slide the cover back into place. Do not mix old and new batteries or batteries of different types for optimum performance. (Page 3 / Page 20)