This site contains information collated after purchasing an Echo Input - a lot of the material also relates to the standard Echo device so may be of use to owners of those devices.
Apart from the introductory sections below you will find more detailed material under the other pages shown in the menu choices.
A MUST READ about "Privacy Control"
Click here for an article by The Sun that tells you to "LISTEN UP" - Your Amazon Echo speaker has quietly recorded and saved your chats – here’s how to listen to them
Connect your Echo smart speaker to your Wifi network using the Alexa App.
Once set up you can use voice commands to have Alexa access a number of web services or routines that are all managed with the Alexa App.
The Echo Input is similar to the regular Echo smart speaker but does not have it's own built in speaker.
Connect your Echo Input to an external speaker, with either a 3.5mm cable or via Bluetooth, after which you can use it like a regular Echo.
It is possible to use the device without an external speaker but it will be limited to only activating Wifi connected devices that have been previously set up, in Routines, by the Alexa App.
Set up your new Echo like this.
Click here for a CNET guide that will help you set up your new Echo equipment.