AcousticSheep SleepPhones Wireless Specs: A Deep Dive into Bed-Friendly Audio

Imagine trying to wind down at night with your favorite audiobook or a calming playlist, only to wrestle with clunky headphones or earbuds that dig into your head. For folks who’ve been there, AcousticSheep SleepPhones Wireless offers a different approach. These aren’t your typical headphones; they’re designed with flat speakers tucked into a soft headband for a comfy fit while lying down. Created by a doctor who just wanted a better way to relax, this gadget has been around since 2007, evolving into a wireless version that’s caught a lot of attention. This article breaks down what makes the SleepPhones Wireless tick, from how they’re put together to what they can do, all in plain language.

Understanding the SleepPhones Wireless Concept

At its heart, the AcousticSheep SleepPhones Wireless is a set of headphones meant for horizontal moments, think sleeping, relaxing, or even a long flight. Instead of bulky over-ear designs or in-ear buds that can irritate, these use a fabric headband to hold thin speakers over your ears. The idea sprang from Dr. Wei-Shin Lai, a family physician who wanted a comfy way to listen to audio after late-night calls. She teamed up with her husband, and from their kitchen table in Erie, Pennsylvania, they crafted the first pairs. Today’s wireless version ditches the cords, relying on Bluetooth to connect to your phone or tablet. Let’s break down the tech that makes this possible.

A Quick Look at the Build

The design is practical and no-fuss. You’ve got a stretchy headband made from soft fabric, housing two flat speakers and a compact Bluetooth module. All the electronic bits can be removed, so the headband’s washable when it needs a refresh. It’s a setup that’s all about keeping things simple and functional.

Technical Breakdown: Components and Materials

The SleepPhones Wireless lean hard into utility over flashiness. Here’s what they’re made of, spec by spec.

Headband Materials

The headband comes in two fabric types, both under AcousticSheep’s SheepCloud label:

• Fleece: A mix of 95% polyester and 5% spandex, pre-shrunk to hold its shape after washing. It’s soft and warm, with a cozy feel that’s solid for cooler nights.

• Breeze: Same polyester-spandex blend, but lighter and designed to wick moisture away. It’s more breathable, a good match for warm weather or if you run hot.

Both are hypoallergenic, machine-washable (once the tech’s out), and stretchy enough to fit snugly without squeezing. The fabric’s got a non-pilling finish, so it stays looking decent over time.

Speaker Specs

The speakers are the core of the audio experience:

• Design: Ultra-thin and flat, they’re built to rest over your ears without sticking out or pressing in. They’re padded with a gray layer facing your ear for comfort, while the white side faces outward.

• Identification: Right speaker has red stitching, left has green, ensuring proper stereo placement.

• Adjustability: They slide inside the headband, letting you position them exactly over your ears.

• Frequency Range: 20Hz to 20kHz, covering the full spectrum of human hearing. Sound’s clear for voices or light music, though bass takes a hit with the fleece fabric softening it.

They’re wired to the Bluetooth module with reinforced cords for durability, not glued in, so they hold up with regular use.

Bluetooth Module Details

The Bluetooth module is the brains of the operation:

• Version: Bluetooth 5.0 AAC, a step up from older models, offering better efficiency and audio quality.

• Range: 15-30 feet (5-10 meters), depending on walls or interference. Fine for keeping your phone on a nightstand.

• Controls: Three buttons, center for power/play/pause, up/down arrows for volume and track skipping.

• Port: Micro-USB for charging, with the cable included.

• Placement: Sits at the back of the headband, tucked into a hook-and-loop pocket.

It’s lead-free and eco-friendly, meeting safety standards for low RF emissions.

Battery Specifications

The power source is a lithium-ion battery inside the module:

• Capacity: Runs for 24 hours on a full charge, enough for a night plus extra.

• Charging Time: About 4 hours via micro-USB. Older versions took 3 hours for an 8-12 hour runtime.

• Indicator: Solid red light while charging, off when full.

• Type: Rechargeable, non-replaceable by users (AcousticSheep offers a replacement service).

It’s designed to be charged after each use rather than fully drained, which keeps the battery healthy longer.

Compliance and Standards

The tech meets several certifications:

• FCC ID: S9HZJRNFY06, compliant with Part 15 rules, won’t interfere with other devices and accepts incoming interference.

• Other Certs: CE and RoHS, ensuring safety and environmental standards.

• RF Exposure: Ultra-low power, within international guidelines for radio wave exposure.

Everything’s assembled in the USA with globally sourced parts, backed by a one-year warranty.

Getting Them Running: Setup Specs

Setting up the SleepPhones Wireless is pretty intuitive, but the tech details matter. Here’s the process with a focus on the specs.

Pairing Process

To sync with your device:

1. Open the headband’s hook-and-loop flap and remove the module.

2. Hold the center button for 5 seconds, ascending tones and double beeps signal pairing mode, with a fast-blinking red light on the module.

3. On your device, enable Bluetooth, find “ACOUSTICSHEEP,” and connect. Takes up to 30 seconds.

• Range During Pairing: Stay within 3 feet (1 meter) for a stable link.

• Tech Note: Uses Bluetooth 5.0 AAC for a solid, low-latency connection.

Charging Specs

When the battery’s low:

1. Disconnect the module from the speakers.

2. Plug the micro-USB cable into the module (USB symbol up) and a USB source (computer or adapter).

3. Charge time’s 4 hours; red light shows it’s working, no light means done.

• Cable Specs: Standard micro-USB, included in the box.

• Power Input: 5V via USB, typical for small devices.

Inserting the cable upside down risks damage, so the orientation’s key.

Wearing and Adjusting

Putting them on involves:

1. Slide the headband on, tag at the back.

2. Move the speakers (32-ohm impedance) to align with your ears.

Speakers shift about 4 inches either side of the center, thanks to the headband’s loose inner pocket. The stretchy fabric (5% spandex) keeps it secure without pinching.

Feature Specs: What They Can Handle

The SleepPhones Wireless stick to practical functions, driven by their tech.

Audio Streaming Capabilities

• Bluetooth: Version 5.0 AAC streams audio from any compatible device - phones, tablets, laptops.

• Range: 15-30 feet, depending on obstacles.

• Supported Content: Anything you can play - music, podcasts, audiobooks.

The AAC codec keeps audio quality decent without draining the battery too fast.

Control Functions

The module’s buttons break down like this:

• Center: 5-second hold to power on (ascending tones), 3-second hold to power off (descending tones), single tap for play/pause.

• Arrows: Single click for volume (up/down), double-click to skip tracks.

• Response Time: Near-instant, with tones confirming actions.

It’s basic but effective for groggy, half-asleep use.

Sound Output Specs

• Frequency: 20Hz-20kHz, standard for most headphones.

• Impedance: 32 ohms, typical for small speakers, balancing power use and volume.

• Quality: Flat speakers prioritize clarity over deep bass, softened further by fleece.

They’re tuned for close-to-ear listening, not room-filling sound.

Noise Reduction Limits

• Tech: No active noise cancellation, just passive blocking from the headband and audio overlap.

• Effect: Dampens ambient sounds (traffic, voices), but loud noises cut through.

It’s a spec limitation, not a flaw, keeps the design simple and battery-efficient.

Full Tech Specs Rundown

Here’s the complete list in one spot:

• Bluetooth: 5.0 AAC, 15-30 foot range (5-10 meters).

• Battery: Lithium-ion, 24-hour runtime, 4-hour charge via micro-USB.

• Speakers: 32 ohms, 20Hz-20kHz frequency range.

• Fabric: 95% polyester, 5% spandex (Fleece or Breeze), hypoallergenic.

• Compliance: FCC (ID: S9HZJRNFY06), CE, RoHS, low RF emissions.

• Weight: Light, though exact grams aren’t listed, feels negligible on the head.

• Charging Input: 5V USB, cable included.

They’re built in Erie, PA, with a one-year warranty.

Size and Color Specs

The SleepPhones Wireless come in variations to match different needs.

Sizing Details

• Small: Tighter fit, for smaller heads.

• Medium: Fits over 80% of adults, the default choice.

• Large: Looser, for bigger heads.

• Stretch: 5% spandex ensures flexibility across sizes.

Medium’s the safest bet if you’re guessing.

Color and Fabric Options

• Fleece: Midnight Black, Quiet Lavender, Soft Gray - warmer feel.

• Breeze: Nighttide Navy, Pitch Black - cooler and breathable.

• Finish: Non-pilling, pre-shrunk fabric.

Each combo tweaks the experience slightly, warmth vs. airflow.

Packaging and Contents

The box includes:

• Headband: With speakers and module installed.

• Cable: Micro-USB, standard length.

• Packaging Options: Eco (plastic bag), retail (box), or gift (purple box with silver cord).

No extras, just the core tech.

Safety and Regulatory Specs

The tech’s got some rules to follow.

Safety Notes

• Strangulation: Headband’s a risk for kids or tangle-prone users.

• Hearing: Covers both ears, blocking outside sound, off-limits for driving.

• Volume: 20Hz-20kHz range can get loud; high levels over time aren’t advised.

Legal Specs

• FCC: Complies with Part 15, Class B device, minimal interference.

• RF: Meets global exposure limits, ultra-low emissions.

• Warranty: One year, voided by user mods.

Another Sleep Solution to Explore

Ozlo Sleepbuds®

An amazingly restful and peaceful sleep every night, free from distractions and noise, is the greatest gift you can give!

What are Ozlo Sleepbuds?

Ozlo is a science-driven, one-stop-shop for the best sleep of your life. Unlike other headphones and earbuds, our tiny Sleepbuds® are engineered to be super comfy, even for side sleepers, while blocking out sleep-disrupting sounds.
Sleepbuds® play audio for up to ten hours, letting you enjoy our noise-masking tracks or stream anything you like, including audiobooks, podcasts, white noise, and YouTube.

The Ozlo Difference

At Ozlo, we're dedicated to helping you achieve the best sleep possible through innovative audio solutions. Our company, founded by three former Bose engineers, focuses on creating products that not only help you fall asleep, but stay asleep throughout the night.

Ozlo Sleepbuds® simply don’t feel like other earbuds. Sleepbuds stay in place even when you toss and turn. The tiny earbuds, with their comfortable silicone tips and anchor-in-place wings, are designed for all-night comfort, no matter your sleeping position. Sleep on your back, side, or whatever works for you, and Ozlo Sleepbuds® will remain in place throughout the night.

Key Highlights

• Founded by three former Bose engineers with extensive experience in audio tech
• Sleepbuds® actively mask unwanted sounds like snoring, traffic, and environmental noises with calming, science-backed audio.
• Ultra-soft silicone tips designed to support every sleeping position, ensuring a secure and comfortable fit.
• Up to 10 hours of continuous use with extra charges from the Smart Case.
• Built-in biometric and environmental sensors offering personalized sleep reports
• Personal alarm gently wakes you without disturbing your partner

Learn More

Conclusion

These headphones are a no-nonsense option for anyone who enjoys audio at night, like a podcast, mellow tunes, or an audiobook. With a soft headband, flat speakers, and a solid 24-hour battery, they’re built to keep things comfy and simple, no fancy bells or whistles needed. They’ve come a long way from that kitchen table in Pennsylvania, sticking to what works: a straightforward design that lets you listen without the hassle of traditional headphones.

It’s not about drowning out everything or delivering studio-level sound; it’s about keeping your audio experience personal. For folks who’ve struggled with bulky gear or earbuds that just won’t stay put, the SleepPhones Wireless offer a different vibe. They’re a small piece of tech with a clear purpose, and for anyone curious about a headband that doubles as headphones, this breakdown shows exactly what they bring to the table.

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