Portable Baby White Noise Machine | 24 Sounds, Night Light & Timer

Create the Perfect Sleep Environment for Baby & the Whole Family

The Rmssim Portable White Noise Machine is your all-in-one sleep companion — designed for babies, toddlers, and adults who want a quieter, more restful night. With 24 soothing nature sounds, a soft warm night light, flexible timer settings, and an impressive 30-hour battery life, this compact sound machine is ready for the nursery, bedroom, office, or wherever your travels take you.

Made in Mainland China.

🌙 24 Nature & Relaxation Sounds

Choose from a rich library of calming audio tracks to set the ideal atmosphere:

• Heartbeat rhythm, shushing sounds & womb ambience
• Babbling stream, birdsong, cricket chorus
• Crackling campfire, thunderstorm rumbles, rainfall
• Clock ticking, dripping water, rolling waves
• Frog croaks, train rumble, piano melodies
• White noise (×2), fan hum (×3)
• Lullabies (×2) & meditation tracks (×2)

Any of these carefully curated sounds can help babies and adults drift off gently and stay asleep longer.

🌟 Sleep-Friendly Warm Night Light

Two adjustable brightness levels of gentle warm light create a cozy, non-disruptive glow — perfect for nighttime feedings, nursery check-ins, or simply as a soft bedside accent. The light stays steady with no flicker, so there's nothing to disturb a sleeping baby.

⏱ 4 Flexible Timer Settings & Memory Function

Set the built-in auto-shutoff timer to 1, 2, 3, or 4 hours — or keep it running continuously. The smart memory function automatically recalls your last-used sound and volume level, so you're always ready to press play and go.

🔋 30-Hour Battery Life — Go Anywhere

Powered by an 800 mAh built-in rechargeable battery, this portable sound machine delivers up to 30 continuous hours of playtime on a single charge (approx. 2 hours to fully charge via USB-C). A USB-C charging cable is included. No power outlet needed — ideal for travel, strollers, or camping trips.

📦 What's in the Box

• 1× White Noise Machine
• 1× USB-C Charging Cable
• 1× English Instruction Manual
• 1× Retail Box

Note: Power adapter/wall plug is NOT included. Please charge fully before first use. Do not operate the device while charging.

📋 Specifications

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Helpful Resource

Learn more about healthy sleep habits and routines from the CDC's Sleep & Sleep Disorders resource center.

Frequently Asked Questions

Q: Is the white noise machine safe to use in a baby's nursery all night?

A: Yes. The Rmssim White Noise Machine is designed with babies in mind. It features a flicker-free warm night light and steady, continuous sound playback. You can use the auto-shutoff timer (1–4 hours) or leave it running all night. Always position the machine at a safe distance from the crib per general nursery guidelines.

Q: How long does the battery last and how do I charge it?

A: The built-in 800 mAh battery provides up to 30 hours of continuous playback on a full charge. Charging takes approximately 2 hours via the included USB-C cable. Please fully charge before first use and avoid using the device while it is charging.

Q: Does the machine remember my sound and volume settings?

A: Yes! The built-in memory function automatically saves your last-selected sound and volume level. When you turn it back on, it picks up exactly where you left off — no need to reconfigure each time.

Q: Can this white noise machine be used for adults as well as babies?

A: Absolutely. With 24 sound options including white noise, fan hum, meditation tracks, nature sounds, and lullabies, this machine is perfectly suited for babies, toddlers, adults, office workers, and travelers seeking a more peaceful environment.

Q: Is the device portable enough for travel?

A: Yes — at just 104 g and 70×70×50 mm, this compact sound machine fits easily in a diaper bag, carry-on, or backpack. Its long battery life and USB-C charging make it ideal for hotels, grandparents' homes, or any trip away from home.