The deal, announced on Friday, gives Amazon a rising star in the emerging and highly competitive field of connected home devices that includes Alphabet’s Nest. In addition to a wireless security camera, Blink makes a video doorbell that lets homeowners glance at their smartphones to see a live feed of who is at their door.

Financial terms of the acquisition were not disclosed.

Blink’s security cameras, first introduced in 2016, are known for their ease of setup and for not needing a plug because they can operate on batteries. The video doorbell, which costs $99, is also battery powered

Amazon push into connected home devices started in 2014 with the Echo, the smart speaker that relies on voice recognition to answer questions and do things like order Uber rides. The company expanded its connected home lineup earlier this year with the Cloud Cam, a security camera that has since become an integral part of Amazon Key, a connected lock that lets Amazon’s delivery workers enter homes to drop off packages when homeowner are away.

Blink said Thursday it would continue to operate as part of Amazon and sell the same products it already does. The companies provided no other information about their plans.