Sense-U Smart Baby Sock Monitor - Excellent Condition Sense-U baby monitoring sock with sensor. Tracks baby's breathing movement, temperature, rollover and sleep via the Sense-U app. Great for extra peace of mind during naps and overnight sleep. • Fully working • excellent condition • Comes with sensor, sock & charger • Clean and from a smoke-free home Used once when my baby was a newborn! Feel free to message if you have any questions!