The phone seemed to have an optional charging deck.
There's a side button labelled "manner/shutter". So, it's not only for camera, but also for turning silent mode on/off. There are no volume buttons.
Of course you can take the battery off. The battery compartment hides slots for a SIM and a microSD, with illustrations on how to use them. The date of manufacture is May 2018.
You can clearly see there's a holder for a strap. We need more phones with holders for a strap. We need more flip phones, too.
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So, that's all this phone has to offer, at least on superficial level. I hope you enjoyed the tour. It took me over 2 hours to prepare it and post all the photos with the descriptions and such ^_^