Non-Bluetooth Keyboard? / Keyboard without Batteries (with accumulator)?

[Cubibubi]

Hello,

I think the only thing missing for my Kaiser is a keyboard. I think I'd even accept a bluetooth one, but i R E A L L Y hate batteries. I think this is a very old technology, and I prefer accumulators (sorry if that's not the right word, but I hope you get what I mean).

So my questions are:

1. Is there a keyboard working with the Kaiser without bluetooth (= with a wire)?

2. Is there a keyboard with a rechargeable battery (not one that you have to take out to load, but one just like in phones)?


Thanks in advance!