No, unfortunately there is no battery and the cable must always be locked.

Amazon Music doesn't work, but Spotify and Tunein do (even without a mobile)

No, you can't connect two clocked Echo Dots (5th generation) to get true stereo sound. However, you can use multiple Echo Dots to create a multi-room sound system, but it won't work as a true stereo system. You can set up multiple Echo Dots to play music in sync in different rooms, but they will not be set up in left/right stereo mode.

The answer is in the name ‘Amazon Echo’ ! ;-) Buy the Google products

Yes, there is a Goove Skull for Alexa and this can be used to control the LEDs.

You can say Alexa alarm clock 5 o'clock dan. She rings unm5

Yes, under Devices ; Echo Dot ; Gear ; Voice. Kind regards AS

Of course, look at Alexa settings and add the device.

Yes, the charger only has 2 pins and fits into any socket in Switzerland

Sure, you can combine it with accounts such as Spotify and use radios or songs as an alarm clock. you can also define recurring alarms such as holidays and weekdays

The clock display is also visible at night, although it is very dimmed. It doesn't bother me when I'm sleeping.

Hello yes Alexa can set language commands and in Portuguese you can set your favourite language thank you Greetings

You have asked a new question, if the aim was to answer a customer unfortunately this is not the case :(