This could have been done better but ....

About the technical side and the quality, was already reported in detail here.
From the voice quality here, the part is okay so far. Which is better by a mile than any Speakerphone me known devices.
Design is a matter of taste nunmal .... I think it is quite wrong that could have been more elegant and make flat can.
But this ko criterion is the energy supply. If the part is already advertised as a separate handset, then you should also
so construct .... ie: a charger would be appropriate, everything else is fumbling. Well, it has a switch, then is there any juice in the battery when the unit is required
... Only then the date must be reset ... what is that supposed to please.
My conclusion: Good basic idea, poorly implemented and not up to date .... pity ... the device goes back!