Questions about Amazon Echo Dot (5th gen.)

No, unfortunately not... I also realised afterwards. I also bought a separate ZigBee Bridge, for example, so that I could integrate my Sonoff devices.

There is little information on this, but I can hardly imagine that it goes beyond the usual 20-20000 Hz, if at all. The sub is specified from 30 Hz, so it certainly won't reach 20-30 Hz downwards. I have read something about the 4th gen. up to approx. 20000 Hz. This will certainly not be easy with standard audio equipment.

With Alexa, you can make hands-free voice or video calls to anyone who has a supported Alexa-enabled device or the Alexa app. No cal to landlines and mobile 07X… numbers

There are two versions, one with a clock and one without, although the one with the digital clock is of course more expensive

We source our products from different suppliers to ensure availability as far as possible. As soon as a supplier does not have the item in stock, we switch to a supplier with higher availability. Each supplier offers different prices, so there may be price differences. There may be various reasons for this, such as higher purchase prices for smaller quantities or additional import costs. This is the same product.

Installation was very quick & easy. I am very satisfied and can recommend it.

This is an international version

Sorry, I know, not a constructive answer: I couldn't even stream Apple Music reasonably to their Homepods. The reason I switched to Echo, only to find it wasn't the speakers. However, I could stream via Bluetooth, just not stable. Connected the Echo as a Bluetooth device. Then I went to Spotify. Everything just worked there. I'm sorry to say that I've been struggling with Apple Music's connectivity problems for a long time.