1.Low battery indicator

2.Auto-off timer(15,30,60 minutes),with the color indication in green,yellow and red

3.20 soothing sounds include heart rate,stream, ocean, rain,summer night,lullabies and white noise

4.World's first smart soother to collect the true heart rate of the mother

5.Create a familiar sleeping environment for your baby no matter where you travel

6.Record & play mother's heart rate (Optional)