Amazon Echo Dot

[Dane Trethowan]

I took delivery of mine yesterday and I couldn't be happier with what 
this device does.

Of course - having read a lot of information published about the Echo 
Dot onlisnt and from other sources plus actually having an Echo myself - 
I pretty much knew what to expect however I've never seen a hockey puk 
before in my life and an Echo Dot is supposed to resmble a puk? Well I 
can't vouch for that myself <smile>.

Anyway its simple enough, just an Audio output jack - not sure whether 
it supports digital Optical out but I suspect not - and a Micro USB port 
for power.

On the top of the device are 4 buttons, volume up/down, microphone 
on/off and the "Action" button.

I Was warned that the Internal speaker of Dot wasn't anything flash 
though I didn't expect it to be given the size of the Dot but its 
certainly listenable enough if all you're planning to do is talk to Dot 
and receive feedback, you'll certainly want something better to stream 
to using Bluetooth or to connect to Dot if you're planning on listening 
to music.

So to my question, I believe I have the 2016 model Echo Dot, what's the 
difference between the 2016 and Second Generation of Dot?