Search results show two broad categories: physical party noisemakers (blowouts, horns, streamers) and electronic sound/white-noise machines designed for sleep or noise masking.

Pack sizes vary from single items to bulk sets; examples from results include small multi-packs (e.g., 8-pack) up to large bulk packs (e.g., 50-pack).

Many units include adjustable volume, multiple sound selections, and timers or sleep timers. Some list specific timer options (for example 45 minutes, 90 minutes, or 8 hours) and some offer auto-timers that fade the sound out.

Yes. Several sound machines include built-in nightlights or clock/light functions—ranging from dimmable amber night lights to models marketed as smart lights or sunrise alarm clocks that also play night sounds.

Electronic sound machines typically offer white-noise and fan-type sounds; nature sounds (ocean, stream/brook, rain); tonal options such as pink and brown noise; lullabies and soothing tracks; and some proprietary or specialty sounds (for example womb/heartbeat or shushing).

Age and safety notes vary by product: some party blowouts list broad suggestions like "All Ages," while others include choking-hazard warnings for small parts or labels such as "Adult Use Only."