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Efficient Noise Cancelling Sleep Earbuds (Obsidian Black) | Built in Sleep Mode, 2 Natural Sounds White Noise, Sleeping Earbuds - color: Obsidian Black

Efficient Noise Cancelling Sleep Earbuds (Obsidian Black) | Built in Sleep Mode, 2 Natural Sounds White Noise, Sleeping Earbuds - color: Obsidian Black

$66.38 USD
$66.38 USD
Sale Sold out
Taxes included.

About this item

  • Scientific Sleep Aid Dual Sound Effects : Features professionally recorded white noise, including Gentle Stream Waterfall (consistent masking urban noise) and Forest Birdsong (morning nature sounds to regulate circadian rhythm). Helps induce relaxation and faster sleep onset.
  • Dual Noise Reduction Technology -80dB : Physical sound insulation: Passive defense, noise isolation, adopting ergonomic in ear design and high-density inert sound insulation materials, such as customized "earplugs", closely fitting the ear canal. From a physical perspective, it can effectively block high-frequency noise. White noise masking: Active intervention, soothing emotions, built-in carefully adjusted white noise masking algorithm. The headphones will emit white noise such as flowing water and forest bird songs. Using the principle of sound masking, neutralize irregular noise in the environment and immediately transform annoying noise into soothing background sound.
  • Zero-Pressure Comfort for Side Sleepers: Ultra-slim ergonomic design fits flush against the ear. Experience no ear pain whether sleeping on your back or side—wear them all night without discomfort.
  • Effortless Touch Controls & Premium Sound : Answer calls, change tracks, or activate your voice assistant with just a tap. Featuring 8mm dynamic drivers and high-quality audio chips, these earbuds deliver crisp, immersive 3D stereo sound. Plus, The upgraded Call noise-canceling microphone ensures crystal-clear calls, even in noisy environments.
  • Universal Compatibility & Super-Stable Bluetooth 5.4 : Works perfectly with iPhones, Androids, PS4, Xbox, Windows, and any Bluetooth-enabled device. Equipped with the latest Bluetooth 5.4 chip and anti-interference tech for a rock-solid connection, lower power consumption, and lag-free performance — perfect for calls, videos, and gaming.
  • Multi-Level Noise Reduction: -10dB light noise reduction for daily driving, cycling and commuting; gently insert earbuds to stay aware of surroundings while blocking unwanted noise. -30dB deep noise cancellation: adjust earbud angle and press the cap into ear canal for enhanced isolation, muffling office chatter, traffic hum and mid-range ambient noise for focused work or music. Up to -80dB ultra-quiet sleep mode: activate it to get -60dB~-80dB deep noise reduction, customize white noise volume based on environment to block snoring, street noise and disturbances for uninterrupted rest.

Overview

  • Brand: Costnzo
  • Color: Obsidian Black
  • Ear Placement: In Ear
  • Form Factor: In Ear
  • Noise Control: Passive Noise Cancellation

Low stock: 10 left

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Reviews

  • ⭐⭐⭐⭐⭐

    Olivia Bennett — Seattle, Washington

    Listenora has a practical selection of audio accessories that made it easy to find what I needed. The product information was clear, ordering was simple, and everything fit naturally into my everyday listening setup.

  • ⭐⭐⭐⭐⭐

    Ethan Parker — Austin, Texas

    I liked how easy it was to browse the different audio categories. The accessories I ordered were straightforward to use and helped make my desk setup feel cleaner, more organized, and more convenient.

  • ⭐⭐⭐⭐⭐

    Samantha Reed — Denver, Colorado

    The item arrived as expected and worked well with my setup. I especially appreciated the clear product details, which helped me check the connection type and compatibility before placing my order.

  • ⭐⭐⭐⭐⭐

    Michael Turner — Portland, Oregon

    Listenora offers useful audio products without making the shopping process feel complicated. My order was easy to track, the accessories were neatly packaged, and I would consider shopping here again for future audio needs.

FAQ

What types of products does Listenora sell?

Listenora offers everyday audio accessories for work, gaming, travel, fitness, and personal listening. Our selection includes headphones, earbuds, microphones, speakers, audio cables, adapters, stands, protective cases, replacement parts, and cleaning accessories.

How can I check whether a product is compatible with my device?

Please review the connector type, supported devices, dimensions, operating-system requirements, and compatibility information shown on the product page. For additional assistance, contact us with the exact brand and model number of your device before ordering.

How much does shipping cost?

Unless a different rate or promotion is displayed during checkout, we charge a flat shipping fee of $6.90 per order. International duties, taxes, customs charges, and other third-party fees are not included unless expressly stated.

How long does order processing take?

Orders are generally processed within 1–3 business days after payment is confirmed. Processing may take up to 5 business days during holidays, promotional events, high-demand periods, or inventory reviews.

How long will delivery take?

Estimated delivery is generally 5–10 business days within the United States and 10–20 business days for eligible international destinations after shipment. Delivery times are estimates and may be affected by carriers, customs, weather, address issues, or other circumstances.

How can I track my order?

Once your order has shipped, tracking information will generally be sent to the email address used during checkout. Tracking may take 2–5 business days after dispatch to display its first meaningful update.

Can I change or cancel my order?

Please contact us as soon as possible after placing your order. We will make reasonable efforts to assist, but changes or cancellations cannot be guaranteed once processing, fulfillment, or shipment has started.

What is your return policy?

Eligible unused products may generally be returned within 30 days after confirmed delivery. Products must meet our return conditions and receive authorization before being shipped back. Certain opened or used hygiene-sensitive audio products may not qualify for change-of-mind returns.

What should I do if my item arrives damaged, defective, or incorrect?

Contact us promptly with your order number, a description of the issue, and clear photographs or videos of the product, packaging, and shipping label. Please retain all original packaging and accessories until the issue has been reviewed.

How can I contact Listenora customer support?

Email us at gtrefasnhuim@gmail.com. Please include your full name, order number, and a clear description of your question. Most inquiries are reviewed within 1–3 business days.

Made for Everyday Listening

At Listenora, we believe audio accessories should do more than simply connect a device. They should make everyday listening feel easier, more comfortable, and better organized.

Every routine has different audio needs. Some moments call for clear communication during work or gaming, while others require compact, dependable accessories for travel, exercise, or relaxed listening. That is why Listenora focuses on practical audio products designed to support real everyday situations without making your setup feel complicated.

Our collection is selected with usability in mind — from headphones, earbuds, microphones, and speakers to cables, adapters, stands, protective cases, replacement parts, and cleaning accessories. Each product is chosen to help improve comfort, connectivity, organization, and convenience across a wide range of audio setups.

Listenora is made for people who value useful products, simple connections, and a more enjoyable listening experience. Whether you are preparing for a meeting, settling into a gaming session, heading out for a workout, or organizing your audio equipment, we are here to help make everyday sound work better for you.

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