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Monster Open Ear AC210 Headphones, Bluetooth 5.4 Earphones Stereo Sound, Wireless Headphones 30 Hours Playback, Type-C Charging, IPX5 Waterproof Open Ear Earbuds,Black by Monster - Used condition

Monster Open Ear AC210 Headphones, Bluetooth 5.4 Earphones Stereo Sound, Wireless Headphones 30 Hours Playback, Type-C Charging, IPX5 Waterproof Open Ear Earbuds,Black

Brand: Monster

Condition: Used
$2557
$3999
-37% Save $1442
Updated: 9 days ago

Description

【True Open Ear Headphones】 The Monster AC210 features a completely open-back design for ultimate comfort, allowing sound to embrace the ears.

【360° Excellent Sound Quality】 The Monster AC210 Bluetooth headset uses dual powerful 12mm dynamic driver units and modified PI composite beryllium diaphragms, as well as the 30mW thrust of the DAC sound card to make the sound more three-dimensional and concrete.

【Resists Hearing Loss】This open-back earplug avoids the most common health concerns of traditional earplugs because it never actually enters the ear. No pinching of the auricle, no pain, and no damage to hearing.

【Extra long battery life】Up to 6 hours of listening time (up to 30 hours when combined with the charging case)

These headphones also make a great Christmas or birthday gift, or a perfect gift for adults to exchange. If you have any questions, please feel free to contact us; our professional team will be happy to assist you.

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Product Details

SKU:
awhd-us-b0g3t9wlpd
Model:
E29BK
Country:
US
ASIN:
B0G3T9WLPD

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 $14 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.

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