PSIER X11 Bone Conduction Headphones Review Open Ear Awareness, 8 Hour Battery and IPX6

Description

What bone conduction actually does

The PSIER X11 does not put anything in or over the ear canal. Two transducers rest on the cheekbones just in front of the ears, held by a titanium memory frame that loops behind the head, and sound reaches the inner ear through the bone rather than through the air. The canal stays completely open.

That is the whole argument for the format and it is a strong one for a specific buyer. A hiker, a trail runner, a commuting cyclist where local rules allow headphone use, or anyone who needs to hear a colleague, a car or a dog while music plays, gets something no sealed earbud can offer. PSIER also puts 8 hours of runtime and an IPX6 rating behind it, which is a sensible pairing for outdoor use.

The tradeoffs are structural and permanent. Bone conduction produces noticeably less bass than any sealed earbud, because there is no seal to pressurize the ear canal. At higher volumes the transducers vibrate against the cheekbone in a way some people find distracting. Sound leaks audibly to anyone standing close by, so this is not a shared office or quiet library product. And in a genuinely loud environment the format performs worst, because there is nothing blocking the noise you are competing with.

Connection: a version, a claim, and no codec

PSIER lists Bluetooth 5.3, which improves connection stability and power behavior over older revisions and does nothing for sound quality on its own. The bullet describes “reduced latency” and “perfectly synced music,” but no latency figure in milliseconds is published anywhere, so there is nothing to check. Perfect sync is not something any wireless link delivers.

No Bluetooth audio codec is named on this listing. That leaves SBC, the baseline every Bluetooth device supports, as the only one you can assume. There is no published evidence of AAC, which matters on Apple devices, and none of aptX or LDAC, which only work when the source device supports the same codec. The first bullet describes the technology as transmitting “rich, clear sound” with “superior audio clarity,” which is marketing language rather than a specification, and bone conduction is in fact the format least likely to deliver on it.

Controls are physical buttons rather than touch panels, and PSIER specifically frames that as preventing accidental activation. For a product worn during exercise with wet hands that is the right choice.

Battery and the water rating

PSIER rates the X11 at up to 8 hours of music, calls and podcasts on a single charge. Because there is no charging case, that is the complete figure and needs no translation. It is one of the genuine advantages of the headband format: there is no combined number hiding a short runtime behind repeated case refills. The flip side is that when the battery is empty there is no case to fall back on, only a cable, so an 8 hour day of use is the ceiling rather than a target.

As with every product in this category, the 8 hour figure is a best case number measured at moderate volume, and this listing does not state the test volume.

The water rating is IPX6, published in both the title and a bullet. IPX6 covers powerful water jets from any direction, which means heavy rain and hard sweat are within scope. It is not an immersion rating, and PSIER says so directly in the same bullet with the note “Not designed for swimming.” That is unusually honest for this catalog and worth crediting. The specification table then falls back to the bare word “Waterproof” with no code, which is less useful than the title. No IP rating covers seawater or high pressure water in any case, and the protection degrades as the housing and port seals age.

Why there are earplugs in the box

The included components list reads: cable, user manual, bone conduction headphones, and earplugs. Bundling earplugs with a product whose entire purpose is keeping your ears open is a genuine contradiction, and it is worth naming rather than explaining away. The usual reason a bone conduction headset ships with earplugs is that blocking the canal raises perceived bass and shuts out ambient noise, which makes the headset usable in loud places. Using them cancels the awareness benefit that is the reason to buy the product at all, and it turns an open ear device into a closed one. If you plug your ears with these on, do not treat them as suitable for roads.

Fit, weight and the safety framing

PSIER quotes 26 grams for the headset, held by a titanium memory frame that returns to shape and soft silicone pads at the contact points. That is light enough for long wear and the wraparound frame means there is no clamping force on the ear itself, which suits people who cannot tolerate ear tips or clips. The 4.2 ounce item weight in the specification table is the shipping package rather than the product. The fit variables to check are glasses arms competing for the same space in front of the ear, and how the rear band interacts with a hat, a helmet or a ponytail.

The fifth bullet is headed “Safe Enjoyment of Music,” and that framing needs care. What an open ear design genuinely does is preserve your awareness of the environment, which is a real safety advantage over sealed earbuds on a trail or a road. What it does not do is make listening safe for your hearing. Bone conduction still delivers sound energy to the inner ear, and because the format struggles against background noise, the temptation outdoors is to turn it up. Keep the volume at a level where ordinary conversation is still audible, and treat the awareness benefit as being about traffic rather than about volume. The listing publishes no volume limit and gives the age range as adult.

Where it sits, and what else to look at

The specification table lists noise control as “None,” which is accurate and appropriately honest for an open ear product. Amazon lists the X11 as ranked 1,936th in Electronics and 28th among open ear headphones, with a 4.4 star average across roughly 199 ratings, which is a small sample from a brand that first listed this product in February 2025. The manufacturer of record is Shenzhen Jiechen Technology, which is also the manufacturer behind other products in this catalog sold under different brand names, so the brand on the box is not always the company that built it.

The reference point for the whole format is Shokz, whose OpenFit publishes far more of its specification. PSIER’s own SP06 open ear headphones take the air conduction route instead of bone conduction, which is a meaningfully different sound. For a clip-on alternative that keeps the canal open without a headband, the Baseus Bowie MC1 and the TOZO OpenEarRing are worth comparing. The format sits in our open ear headphone reviews, with over ear options in our wireless headphone reviews.

Buy it, or skip it

Buy the X11 if awareness outdoors is the priority, if ear tips and clips do not work for you, and if 8 hours per charge with an IPX6 rating covers your day. Skip it if you want bass, if you need to block out noise on a train or a plane, if you swim, or if you need a codec or a latency figure before committing. And treat the bundled earplugs as a contradiction rather than an accessory, because using them removes the reason to own the product.

Additional information