Brand New Name, Same Trusted Quality - Formerly LUMI, Zello continues to deliver award-winning sleep solutions loved by over 100,000 families. 30 Soothing Sounds – Choose from 7 fan sounds, 7 white noise options, and 16 unique sounds, including comforting baby sounds like Lullabies, Shushing, and Womb Heartbeat, along with ambient household sounds like Rainfall, Crackling Bonfire, Washing Machine, and Hairdryer. Safe Volume Levels– Adjust the volume between 55 to 108 dB, with a recommended setting around 65 dB for all-night use. Warm White & Red Night Light - There are 5 light options including a dim & warm night, a breathing light which mimics the motion of deep breaths, as well as a dim & bright red light scientifically proven to induce sleep. Sleep Timer – Play continuously or set a timer for 30, 60, or 90 minutes. Portable – Lightweight and compact, easily attaches to a pushchair or car seat with the child-safe clip. USB Rechargeable - The built-in rechargeable battery provides 20 hours play time per charge, or use it plugged in.