Most models offer a mix of white-noise options (including brown noise), nature sounds (ocean, stream, rain), lullabies or classical tracks, and infant-soothing sounds such as shushing or a heartbeat.
Many units provide multiple brightness levels or dimmable warm-amber lighting. Some include explicit dimmer controls and projection options, with selectable glow intensities for different rooms or bedtime routines.
Timer options vary by model. Common presets include 15, 30, 45, 60 or 90 minutes, an 8-hour setting, or continuous play — exact minute-based presets differ across devices.
Most are made from common plastics, typically ABS, and some models add fabric accents for texture or styling.
Reported runtimes vary widely across models — examples in these results range roughly from about 9–10 hours up to around 33 hours per charge.
Many units let you run lights and sounds simultaneously and use built-in timers or auto-off settings. A subset of models also support smartphone apps or Wi‑Fi for remote control and scheduling.
