Add to favorites
Monster Sleep Ear100 Ear Buds, Sleep Earbuds with Stereo Sound, Design for Side Sleeper, 32H Playtime, Bluetooth 6.0, ENC Noise Cancelling, IPX6 Waterproof Mini Headphones, Black by Monster - Used condition

Monster Sleep Ear100 Ear Buds, Sleep Earbuds with Stereo Sound, Design for Side Sleeper, 32H Playtime, Bluetooth 6.0, ENC Noise Cancelling, IPX6 Waterproof Mini Headphones, Black — Open-Box, 87% Off

Brand: Monster

Condition: Used
$1972
$15299
-87% Save $13327
Updated: 5 days ago

Description

【Side sleeping comfort&sleep mode】Monster Wireless Earbuds designed for the ultimate side-sleeping experience, creating a sensation of them virtually vanishing. Meticulously crafted with an ultra-minimalist design and pliable, hypoallergenic silicone tips, Activate Sleep Mode to silence all notifications, disable accidental touch controls, and eliminate low battery beeps. Let your sleep be undisturbed and continue to be peaceful and comfortable.

【With Pure Monster Sound】 This bluetooth earbuds offer decreased distortion, immersive sound, and premium diaphragms for enhanced clarity and detail.It can provide high fidelity immersive stereo sound, deep bass, and rich studio quality to bring music to life. Whether you are outdoors or indoors, sleeping or playing games, you can clearly feel every beat.

【Multiple noise reduction&ultra long battery life】With the ENC enhanced microphone, Monster Sleep earphones can significantly reduce background noise and achieve clear communication. In noisy streets, gyms, or windy outdoors, hear every word clearly. Combined with a 24 hour long battery life, you don't have to worry about battery life from night to day, creating a peaceful personal oasis that is perfect for family use, flying, or hotel accommodation.

【Bluetooth 6.0】This wireless headphones utilizes advanced Bluetooth 6.0 chipset to provide an easy and fast pairing process. When you open the stylish and compact charging case, ear buds intelligent automatic reconnection system will be activated. No manual intervention is required. Enjoy a stable and anti-interference connection that can reach up to 15 meters, allowing you to freely shuttle while working.

【IPX6 Waterproof】This sleep bluetooth headphones is designed specifically for elasticity and has an IPX6 waterproof rating, providing strong waterproof protection to prevent splashing water and excessive sweating. This can ensure that your rest is not disturbed by moisture, whether it's intense exercise or sudden downpours. Very suitable for outdoor travel.

Sleep Earbuds, Mini Wireless Earbuds in Ear, Bluetooth 6.0 Sleep Headphones Design for Side Sleeper, 32H Bass Stereo Earphones with ENC Noise Cancelling, IPX6 Waterproof Ear Buds for Android iOS Type-C Charging.

Sold by

Amazon Warehouse

Verified Retailer

Official Amazon outlet for open-box & returned items

  • Backed by Amazon's A-to-Z Guarantee
  • 30-day return policy
  • Ships from Amazon fulfillment centers
  • Price verified on Amazon

Product Details

SKU:
awhd-us-b0hgwt6gyx
Model:
W57
Country:
US
ASIN:
B0HGWT6GYX

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $133 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for Monster products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.

More open-box deals

Updated daily from Amazon, Reebelo, and Dyson.

Sign in to save items

Save favorites and get alerts when prices drop.

or

We'll email you a link to sign in instantly — no password needed.