my Hummy Mini with Sleep Sensor Humming Heart - Blue - take the soothing, oh-so-familiar hum of my Hummy with you anywhere. Due to its small size and a special Velcro fastening, the my Hummy Mini is perfect to hang on a child's bed, buggy, car seat or baby carrier. You can also attach it to your hand. In the middle of my Hummy Mini there is a pocket, fastened with a child-proof safety zip, which houses the Humming Heart. The Humming Heart can be operated without having to remove it from the zip pocket. Machine washable, after removing the Humming Heart. According to the method of 5 S?s developed by Dr Harvey Karp, the newborn babies are best soothed by Swaddling, Side-Stomach Positioning, Swinging, Sucking and Shushing. my Hummy provides the shushing by emitting white and pink noise. To better adapt to the needs of little ones, every my Hummy produces 5 types of white and pink noise: white noise, pink noise, amniotic fluid with heartbeat, ocean waves, rainfall. my Hummy are produced to