I've been waiting for this gadget to arrive for over 3 weeks, I think. The main reason I bought it is because it can fit into my pocket. When folded it's about the size of my phone so I can carry it with me all the time and be prepared to churn a post anywhere.
It has a USB cable for charging and it says the battery life is up to 40 hours of working time and up to 30 days of standby time. We'll see if this is true.
It costed me 16.28 Euros (including shipping) from Amazon.
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The device is quite comfortable to use but it will take some getting used to because the keys are a little wider than on my mini keyboard I've been typing on.
Also because it's folding, it's kind of tricky to type fast without making entire keyboard fold WHILE typing on my lap.
I think I've been typing letter B with my right hand whereas on this keyboard it is located on the left.
Nevertheless, with patience I think it will help me be more productive.
I will keep the old bluetooth mini keyboard for backup or give to 