The Owlet Monitor Duo offers peace of mind with heart rate, oxygen level, audio, and video monitoring. Featuring a sleek mint and white design, this device is perfect for keeping an eye on your little one. Sock was used for several months but has been cleaned. The monitor was used a few times. Everything is back in the box! Works great, really gave us a peace of mind with our reflux baby. Pricing low for another momma to be able to afford it, I will not discount any further than what’s listed. *Please only purchase if you really need it, not for resale*