Why we created this bundle:Having a safe home for you, your kids, and your pets is important. With this bundle, you can get the alert you need whenever smoke and carbon monoxide reach unsafe levels. Away from home? No problem. To make things even easier, you can get immediate alerts on your smartphone so that you can know what is happening from wherever you are. | Google Home Safety Bundle - Nest Protect Wi-Fi Smoke & Carbon Monoxide Alarm 2-pack & Insignia Headphone Adapter