Echo For Free On The Net

For the first time, users won’t have to purchase an Alexa-enabled device to access Alexa. 

And you still give the virtual assistant commands in the same way you would if you had an Echo, although you’ll have to click and hold a button in the web app to have Alexa listen to you (whereas with an Echo, she’s always listening, sometimes too frequently).

Try it free.  
You will need an Amazon account.