When placed inside the case, the earphones will start charging, signaled by a LED-powered indicator, which also is touch enabled; the top holes are the secondary speakers for eliminating outside noise:

The charging case was built in order to be used with one of the protective cases; the first one, takes part of the Defense Mecha series and resembles a robot, a giant machine piloted usually by humans, which is popular amongst Japanese:

Some areas of it look like Lego pieces, such as the top cover:

On the bottom, we will note some cut-outs:

On the side, we will note a small plastic pipe, trying to mimic a hydraulic equipment:

The case does also come with an easy to identify top release button:

Thanks to the included spring system, the top lifts up like a cigarette lighter:

The charging case can be easily inserted in the Defense Mecha:

Through the plastic pipe we will be able to observe the current charging level of the battery via the internal LED, which is a nice touch!