What improvements have been made to this device? Reviews for other Onelink products were not favorable.

With technology and smart home platforms, there are constant and ongoing improvements and updates that are made. Here at First Alert, we are committed to quality and reliability, and strive to have the best products in the market. The Onelink Safe & Sound is a completely new product, built from the ground up. It is not only a smart smoke and carbon monoxide alarm, but also a premium home speaker with Amazon Alexa functionality built-in.

All of our life-safety products comply to national standards and are rigorously tested. With the Onelink Safe & Sound we also comply to Apple HomeKit standards and Amazon Alexa certification.