![Video doorbell firm Ring says its devices slash crime—but the evidence looks flimsy | MIT Technology Review Video doorbell firm Ring says its devices slash crime—but the evidence looks flimsy | MIT Technology Review](https://wp.technologyreview.com/wp-content/uploads/2018/10/ring-videodoorbell-9.jpg)
Video doorbell firm Ring says its devices slash crime—but the evidence looks flimsy | MIT Technology Review
![Sketchy guy walks up and rings my doorbell, rings it again for some reason (my buddy said it looked and sounded like he scanned something the second time) and then walks off. Sketchy guy walks up and rings my doorbell, rings it again for some reason (my buddy said it looked and sounded like he scanned something the second time) and then walks off.](https://external-preview.redd.it/5y0Ruo3EVeQPJfUyHsEfLOca-YjZ31C9FVpoVl_sSBQ.png?format=pjpg&auto=webp&s=52a6cc03065c81e07e9ad13935fb5888f2513e6a)
Sketchy guy walks up and rings my doorbell, rings it again for some reason (my buddy said it looked and sounded like he scanned something the second time) and then walks off.
![Funmit Doorbell Transformer 16V 30VA Compatible with Compatible with Ring Video Doorbell Pro,Nest Hello Video Doorbell Hardwired Door Chime Transformer - - Amazon.com Funmit Doorbell Transformer 16V 30VA Compatible with Compatible with Ring Video Doorbell Pro,Nest Hello Video Doorbell Hardwired Door Chime Transformer - - Amazon.com](https://m.media-amazon.com/images/I/61eTBB5cCCL.jpg)
Funmit Doorbell Transformer 16V 30VA Compatible with Compatible with Ring Video Doorbell Pro,Nest Hello Video Doorbell Hardwired Door Chime Transformer - - Amazon.com
![Amazon.com: Ring Video Doorbell Pro – Upgraded, with added security features and a sleek design (existing doorbell wiring required) : Tools & Home Improvement Amazon.com: Ring Video Doorbell Pro – Upgraded, with added security features and a sleek design (existing doorbell wiring required) : Tools & Home Improvement](https://m.media-amazon.com/images/I/51r9ifxNaqL._UF700,800_QL80_.jpg)
Amazon.com: Ring Video Doorbell Pro – Upgraded, with added security features and a sleek design (existing doorbell wiring required) : Tools & Home Improvement
![Ring doorbell camera shows masked robbers forcing North Carolina man to unlock his front door at gunpoint - 6abc Philadelphia Ring doorbell camera shows masked robbers forcing North Carolina man to unlock his front door at gunpoint - 6abc Philadelphia](https://cdn.abcotvs.com/dip/images/5421632_072619-wpvi-vsd-nc-ring-armed-robbery-storyful-vid.jpg?w=1600)