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Hearing Health · Guide

The hearing aids in your drawer didn’t fail because of the brand

10 reasons people with mild to moderate hearing loss are switching to open-ear — where nothing is pushed into the ear canal.

Megan Caldwell Updated on Oct 9, 2026  |  Hearing Health
FDA registered ISO 13485 CE Red Dot Design Award 2025 FDA registered · ISO 13485 · Red Dot 2025 · 100-day returns

Key Points

  • Over-the-counter hearing aids became legal to sell without a prescription in the US in October 2022, for adults 18 and over with perceived mild to moderate hearing loss.
  • Nearly every device in that category seals the ear canal with a silicone tip or dome — which is where the three most common complaints come from.
  • The Flysound B02 OpenSound takes the opposite approach: the speaker sits on the outside of the ear and the canal is left open.
  • It costs a fraction of a clinic-fitted pair, which averages roughly $4,600 in the US.

The television keeps getting louder. Dinner out means asking people to repeat themselves. Sometimes you miss what your grandchild said and smile anyway.

You may have tried hearing aids already. If they hurt or made your voice sound hollow, it makes sense that you stopped wearing them.

For some of those problems, the fit matters. A device that blocks the ear canal can change how your own voice sounds. Flysound B02 OpenSound takes a different approach: a soft clip outside the ear, with nothing pushed inside.

An open-ear hearing aid does not go into your ear canal. It clips over the outside of your ear and sends sound in, leaving the canal open.
The newer approach

Open-ear is the new science of hearing aids — and none of it goes down the canal

For decades a hearing aid meant pushing a tip into the ear canal and sending amplified sound down it. Open-ear does the opposite: the speaker sits outside the canal opening and leaves it clear. It is the fit audiologists have long chosen for ears that cannot tolerate a seal — now engineered into a device you can buy without a prescription.

Measured, not presetA five-minute check in the app builds a profile from your own responses, rather than loading a generic curve.
16 channelsThat profile is applied across 125–7,500 Hz and re-balanced continuously as the room changes.
Feedback handled in the chipSqueal is cancelled by the processor instead of by sealing the ear tighter.

Red Dot and iF Design Award winners, 2025 — both awarded for the open-ear design. FDA registered; registration is a listing with the FDA, not an approval or endorsement.

01Nothing goes inside your ear

Cross-section comparison: a silicone dome sealing the ear canal, beside the B02 resting outside with the canal left open.

A cross-section of the same ear fitted two ways. On the left a silicone dome plugs the canal; on the right the speaker rests outside it. Illustration: Flysound

If hearing aid tips leave your ears sore, a different fit may help. The B02 clips onto the outside of your ear. Nothing goes into your ear canal, so there's no tip pressing against the inside.

Is this the right level for you?

Thirty seconds. Over-the-counter hearing aids are for perceived mild to moderate loss only.

Do you turn the television up louder than others in the room like it?
In a busy restaurant, do you lose the thread and smile along?
Can you follow a one-to-one chat in a quiet room without much trouble?
Do you have ear pain, discharge, sudden loss, or loss in one ear only?

02Your voice sounds more natural

Diagram of an open ear canal with the sound of your own voice escaping, and a sealed ear shown inset.

With the canal left open, the sound of your own voice escapes instead of being trapped behind a seal. Illustration: Flysound

When a hearing aid blocks your ear, your own voice can sound hollow or too loud. Even chewing may sound louder than usual. The B02 leaves your ear canal open, letting that sound escape and helping your voice sound more natural.

03Less annoying whistling

Diagram contrasting sealing the ear tighter against cancelling the feedback in the chip.

Feedback is amplified sound leaking back into the microphone. The usual fix is to seal the ear tighter. Illustration: Flysound

A hug or a hat can sometimes make a hearing aid whistle. This happens when sound from the speaker goes back into the microphone. The B02 has built-in feedback control to help reduce that squeal, though it may still happen in some situations.

Try it for 100 days — $299Both ears included. Free US shipping. Send them back within 100 days and we pay the postage.

04Just pick it up and clip it on

The B02 earpiece lifting clear of its charging case: the arm and speaker are one moulded piece, and the case shows its charge as a number.

The earpiece is one moulded piece — no domes or wax guards to fit before you can wear it. Product photograph

Tiny hearing aid tips can be hard to place, especially if your hands feel stiff. The B02 has no tip to push into your ear. Clip it on, then use the included handheld remote if you prefer buttons to a phone app.

05A different fit for narrow ears

Checklist of ear conditions that suit an open fit, with a warning to see a doctor first.

Clinicians commonly route people with these conditions toward an open fit. Illustration: Flysound

Some ear canals are too narrow for a tip to feel comfortable. The B02 sits outside the ear, so there's nothing to squeeze inside.

Please check first. If you've had ear surgery, a damaged eardrum, repeated infections, pain, or fluid from your ear, see a doctor or audiologist before buying.

06Extra help keeping them secure

The B02 worn on an ear, with the thin anti-loss cord running down behind the neck.

An anti-loss cord is supplied in the box and clips to both earpieces. Photo: Flysound — digitally created

Losing a hearing aid is frustrating, especially when it's too small to spot. The B02 hooks over your outer ear to help it stay in place. An anti-loss cord comes in the box for extra security while you're out and about.

Try it for 100 days — $299Both ears included. Free US shipping. Send them back within 100 days and we pay the postage.

07Up to 12 hours on one charge

Battery chart: 12 hours of hearing per charge, about 6 hours streaming, and 60-plus hours held in the case.

Battery figures quoted by the manufacturer. Streaming over Bluetooth shortens the day. Chart: Flysound

The B02 gives you up to 12 hours of use per charge. The charging case holds over 60 more hours of power, so you can recharge between uses. Battery life will vary depending on how you use it, including calls and streaming.

08TV sound straight to your ears

A couple sitting on a sofa watching television together at a comfortable volume.

Bluetooth 5.3 sends television audio to both ears, so the set can stay at a volume the room agrees on. Photo: Flysound — digitally created

Turning up the TV can make it too loud for everyone else. With a compatible Bluetooth connection, the B02 can send TV sound straight to your ears. Check your TV's connection options first, since some setups may need an extra device.

09A real person when you need help

A customer support agent wearing a headset at a home office desk.

Flysound support is reachable by phone and email, and can walk a first-time user through set-up. Photo: Flysound — digitally created

Getting used to a hearing aid can take a little help. Call us on (302) 271-0679 or email hello@flysoundusa.com with a question about setup or daily use and a person answers. If the sound itself needs adjusting, we book you a remote fitting appointment with Flysound's fitting team at no charge.

Try it for 100 days — $299Both ears included. Free US shipping. Send them back within 100 days and we pay the postage.

10Time to try it at home

A woman opening the B02 shipping box at her kitchen table.

A hundred days from delivery to decide. If the pair goes back, we cover the return postage. Photo: Flysound — digitally created

You need time to find out how a hearing aid fits into your day. You have 100 days from the day they arrive. If they are not right, email hello@flysoundusa.com inside that window and a prepaid label comes to your inbox — we cover the return postage ourselves, rather than passing on the manufacturer's change-of-mind charge. Send the pair back complete (device, case, cables and papers) and you get a full refund with no restocking fee. Refunds land 5–10 business days after the parcel is checked in. Full terms here.

What this product is certified for

FDA ISO 13485 CE Red Dot Design Award
FDA registered
The manufacturer and the device are listed with the US Food and Drug Administration. Registration is a listing, not an FDA approval, clearance or endorsement.
ISO 13485
The international quality-management standard for medical device manufacturing.
CE
Conformity marking for sale in the European Economic Area.
Red Dot & iF Design Award, 2025
The open-ear design was judged by two independent international design juries.

There is no paid clinician endorsement behind this product. What is above is what the device actually carries. The B02 is an over-the-counter hearing aid for adults 18 and over with perceived mild to moderate hearing loss. It is not a treatment for any medical condition and it does not restore hearing.

Reviewers on Flysound

Independent channels that have covered Flysound hearing aids. These reviews are of the H8 and H9 models, which are Flysound's behind-the-ear range — not the B02 shown on this page.

Shown for reference only — these are not playable here. Search the channel name on YouTube if you want to watch one. Flysound sent review units to these channels; the opinions are the reviewers' own.

Not for you if…

  • Your hearing loss is more than moderate. See a hearing professional for an evaluation and an appropriate prescription device.
  • You want an invisible hearing aid. The B02 is discreet, but it sits on the outside of the ear and can be seen.
  • Music listening is your main goal. An open ear lets bass escape, so this is not the right choice for full, rich music sound.
  • You have ear pain, discharge, sudden hearing loss, or hearing loss in only one ear. See a doctor before buying anything. Sudden hearing loss needs urgent medical attention.

B02 OpenSound

Try the Flysound B02 OpenSound pair with free US shipping and 100 days to decide. See how hearing support feels when nothing goes inside your ear.

Try it for 100 days
100-day returns — we cover the postage, no restocking fee1-year warrantyFDA registeredSupport (302) 271-0679 HSA / FSA card acceptedFree US shipping

About this article. Written by the Flysound team about a Flysound product. This is an advertisement, not independent journalism. The Flysound B02 is an over-the-counter hearing aid for adults 18 and over with perceived mild to moderate hearing loss. It is not a treatment for any medical condition and does not restore hearing. “FDA registered” means the manufacturer and device are listed with the FDA; it is not an FDA approval or endorsement. The B02 is rated IP55 — it resists dust, sweat and rain, and should not be submerged. Individual results vary. Some photographs on this page are digitally created illustrations of the product in use. Further guidance on over-the-counter hearing aids is published by the FDA and by the National Institute on Deafness and Other Communication Disorders. If you have any symptom listed above, consult a licensed professional before using any hearing device.

Try it for 100 days — $299Both ears included · free US shipping · 100 days to decide, return postage on us
100 days to decide
Free US shipping
Try it for 100 days