https://www.theverge.com/2019/3/7/18254803/sonos-amp-review-speaker-specs-features-price

https://dzone.com/articles/iot-smart-home-automation-and-its-future-predictio

https://atmoshome.mybigcommerce.com/

https://www.pcmag.com/article/345387/what-is-5g

https://www.pcmag.com/article2/0,2817,2410889,00.asp

https://thewirecutter.com/reviews/sonos-player/

https://www.nytimes.com/2017/04/26/technology/personaltech/mesh-network-vs-router.html