Rolling Stone Menu The 10 Best Amazon Echo Accessories — From a $20 Security Camera to a $350 Robot Vacuum The Amazon Echo can become even more useful when paired with third-party tech By Amazon Products featured are independently selected by our editorial team and we may earn a commission from purchases made from our links; the retailer may also receive certain auditable data for accounting purposes. The Amazon Echo has change the tech world in a lot of big ways. It popularized smart speakers, set the bar for voice recognition and AI, and normalized the concept of talking to a gadget. Amazon has also committed to improving the Echo, and making Alexa (its smart assistant) even more capable.