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Owlet Smart Sock Baby Monitor | Clinically Proven Heartbeat and Oxygen Sensor | Track Your Baby's Heart Rate and Blood Oxygen Level | Mint Smart Sock : Amazon.co.uk: Baby Products
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Owlet Monitor Duo - Cam and Smart Sock 3 - Baby Monitor with HD Video Camera - Night Vision and Audio - Track Heart Rate, Oxygen and Sleep Trends (0-18 months) -
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