MJOFFIN x20s Bone Conduction Open-Ear Headphones, Bluetooth 5.4

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Product guide

MJOFFIN x20s Bone Conduction Open-Ear Headphones, Bluetooth 5.4

MJOFFIN x20s bone conduction headphones use an open-ear design intended to leave your ears uncovered while listening. The listing claims a 22 g weight, Bluetooth 5.4 and up to 10 hours of playtime, making them a lightweight option to consider for outdoor activity. The page describes IP55 protection, while the technical details state only “Water Resistant,” so treat the precise protection rating as unconfirmed.

At a glance

Open-ear design is intended to let users hear surrounding sounds while listening.
The listing claims up to 10 hours of continuous playtime and talk time on a charge.
The feature description claims a noise-reduction microphone for calls.
A flexible titanium frame and compatibility with glasses and helmets are claimed in the feature text.

Price

$28.48Save 72%

Reference price: ~~$99.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Open-ear fit avoids placing an earbud inside the ear canal and may suit listeners who want to remain more aware of their surroundings.
The listed 22 g weight is a concrete consideration for buyers prioritizing a light headset.
The claimed 10-hour playtime and Bluetooth connection suit untethered listening during workouts or walks.

Cons

Open-ear listening does not isolate the listener from surrounding sound, which may be a poor fit where audio isolation is the priority.

Technical specifications

17 specifications

Identity
Brand	MJOFFIN
Model	x20s

Connectivity and controls
Wireless connection listed	Bluetooth
Bluetooth version	5.4
Bluetooth range	10 meters
Control method listed	Touch
Charging interface	USB Type C

Design and fit
Form factor	Bone Conduction
Ear placement	Open Ear
Weight listed	22 g
Color	Deep Black

Audio and compatibility
Driver type	Bone Conduction Driver
Impedance	80 ohm
Compatible devices	Cellphones
Headphone jack	No Jack

Materials and protection
Enclosure material	Plastic
Water resistance listed	Water Resistant

What to know before buying

Listing details to confirm

The listing details are inconsistent on water protection: the title and feature text claim IP55, but the technical details state only “Water Resistant.” The feature text also claims a flexible titanium frame while the materials field lists plastic. The microphone is described as noise-reducing in the title and feature text, while the noise-control field says “None.” Confirm the exact rating, materials and microphone behavior before relying on those claims. Open-ear use does not guarantee awareness of hazards, so stay attentive during outdoor activity.

What’s in the box

Included

Eartip
Headphone body
Silicone tension band
USB charging cable
User manual

Who is it for?

A good fit for

Runners, walkers and cyclists considering open-ear listening while keeping their ears uncovered.
Buyers looking for a lightweight wireless headset for workouts or phone calls.
People who want a frame-style fit that the listing says can work with glasses or helmets.

Less suited to

Listeners who need ear-sealing noise isolation or privacy in noisy environments.
Buyers who require a confirmed waterproof rating for swimming or immersion.

MJOFFIN x20s Bone Conduction Open-Ear Headphones, Bluetooth 5.4 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 30 ratings

5 stars66%66%
4 stars14%14%
3 stars13%13%
2 stars0%0%
1 star7%7%

Customer feedback highlights sound quality, lightweight wear and outdoor use. Those comments align with the open-ear, 22 g design as considerations for walking and workouts, but do not establish a particular water-protection rating or confirm swimming suitability. The overall rating distribution is mostly five-star but includes three-star and one-star ratings, so experiences are not uniformly positive.

Positive themes

Customers mention sound quality and lightweight wear.
Feedback mentions outdoor use and hearing surroundings while listening.

Frequently asked questions

Do the MJOFFIN x20s block outside noise?

They use an open-ear design, and the technical details list noise control as “None.” They are not presented as noise-isolating headphones.

How long does the battery last?

The feature text claims up to 10 hours of continuous playtime and talk time on a single charge. Actual duration is not established by the supplied listing.

Can I use these headphones while swimming?

The listing does not confirm swimming suitability. Its IP55 claim conflicts with a technical detail that says only “Water Resistant,” so do not assume they are suitable for swimming or immersion.

What is included in the package?

The listed package contents are an eartip, headphone body, silicone tension band, USB charging cable and user manual.