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Siemens Binax 7 Pure/Ace/Carat/Insio

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£1395 per aid

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Model:Binax 7
Style:Behind the Ear
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Hearing Aids - What's included in our Prices?

Full Hearing Test & Examination by a Registered Audiologist
Fitting and Programming of Hearing Aid(s)
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Details & Features

Update – The Binax range now includes the IIC or “invisible in the canal” shape and the CIC or “completely in the canal” shape. The name of the new model is the Insio. This adds to the full range of RIC “Reciever in canal” aids already available. If you are thinking of buying a Binax then be sure to read right to the bottom of the page as there is some important information you will want to read.
Main Features
The Siemens binax 7 range consists of three models, the Carat, Pure and Ace. These are all different sizes of Receiver In Canal (RIC) hearing aid, the Carat is the larger model and the Ace is the smallest. These are suitable for mild to severe hearing loss.

These hearing aids benefit from 48 sound processing channels which, along with binax BestSound Technology ensures excellent sound quality.

E2e Wireless technology

This enables two hearing aids to work together, sharing sound signals and synchronising their settings.


This program can automatically narrow or expand the focus of your listening by changing the directional microphones. You can either listen to sound from a narrow area, such as a person in front of you, or listen to the sound all around you. This feature can be altered manually giving you more control over your hearing in different environments.


This feature gives the wearer High Definition sound quality. It enables each microphone to pick up sound from both hearing aids when two are worn. This gives you a virtual 8 microphone listening network for a binaural sound experience. If one hearing aid is getting a clearer speech sound than the other, it can send it to both hearing aids simultaneously for better speech clarity.


This feature changes the direction of the microphones from facing in front of you, to the side or behind you. This program runs automatically when you are in a car, you can also change it manually using the remote control.

Other features
Directional Speech Enhancement works to enhance and clarify speech in noisy environments.

eWindscreen is able to reduce the effect of wind noise on speech clarity when you are outside.

The Speech and noise management program improves speech understanding in noisy, difficult to hear, environments.

Frequency compression takes the hard to hear, high frequency sounds and brings them within your hearing range.

Sound Smoothing helps to reduce the annoyance of sudden loud noises by lowering their volume and softening the sound. This makes listening more comfortable for those with sensitive hearing.

Feedback cancellation detects and removes the annoying whistling sound of feedback before you or anyone else can hear it. It does this without affecting other high pitched sounds.

The Tinnitus Noiser is designed to help relieve the symptoms of tinnitus using sound distraction.

Datalogging is used to record your most used settings on the hearing aids so they can be finely tuned to your needs.

Features only available in Pure and Carat models;

Extended bandwidth enables more frequencies to be processed to provide better speech and sound clarity.

The eWindscreen binaural program can detect wind noise and work out which hearing aid is the worst affected. It then transmits the better speech sound from the other side to both hearing aids simultaneously, giving you a binaural hearing effect when you are out, helping you to hear those around you with better clarity.

SoundBrilliance enables sound streaming to both hearing aids from other Bluetooth enabled devices via the easyTek remote control and streamer.

Spatial Speech Focus is able to detect the strongest speech signal and directs the microphones towards it.

Narrow Directionality program lets you narrow the focus of the directional microphones to target your listening to a specific area, giving you better speech hearing in very challenging environments.

The Spatial Configurator is designed to allow you to widen the span and focus of your hearing as well as narrow it. This allows you to hear sound from someone in front of you or pick up environmental sounds from all around you. You can also direct your listening to one side or behind you.


The easyTek remote control and easyTek app allow you to change and fine tune your hearing aid settings quickly and discretely. The easy to use app can be downloaded on both Android and iOS Smartphones.

The Pure and Carat models are fully rechargeable, the smaller Ace model is battery operated. These hearing aids are moisture resistant and available in a range of colours. An optional T-coil or audio shoe is also available.

When considering where to buy your hearing aid, choosing an audiologist can be as important as the choice of hearing aid itself. Which? magazine generously gave us permission to display the information below (click here for the full article) The ratings speak for themselves and customers rank independent audiologists like ourselves significantly ahead of the big national companies.

Written by Paul Harrison, Audiology Expert

Managing Director & founder of Hearing Aid UK, with over 20 years of audiology experience and a member of the British Society of Hearing Aid Audiologists Council (BSHAA).

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Hearing Aids - What's included in our Prices?

Full Hearing Test & Examination by a Registered Audiologist
Fitting and Programming of Hearing Aid(s)
All Aftercare and Fine Tuning for Life
Full Manufacturer's Warranty
60 Day Full Money Back Guarantee
Is this the best model for me?

If you are looking at this page then it is likely that an audiologist has suggested that you purchase this particular hearing aid, so is this the best model for you?

In general, any audiologist will always be recommending to you the model that best suits your needs. Here is a useful check list to make sure that is the case.

  • Audiologist level of knowledge. The audiologist you have seen will hopefully have a wide knowledge of all available hearing aids, however some will only be familiar with a small number of brands and therefore may not really be in a position to know which model is the best for you. It is OK to challenge their recommendation and ask them to justify why this particular brand is the one for you.
  • Do research. Read about the hearing aid that was recommended. Does it seem like it will suit your lifestyle? Does it have more or less features than you need? 
  • Be aware of sales targets. Many high street retailers have specific tie-ins to a particular manufacturer/brand. The hearing aid they have suggested may still be the correct one for you, but do your research so that you know why they might have recommended it.

If in doubt, feel free to give us a call. That's what we're here for.

Do I need one hearing aid or two?

If you have a significant hearing loss in both ears, you should be wearing two hearing aids. Here are the audiological reasons why:

Localisation. The brain decodes information from both ears and compares and contrasts them. By analysing the miniscule time delays as well as the difference in loudness of each sound reaching the ears, the person is able to accurately locate a sound source. Simply put, if you have better hearing on one side than the other, you can't accurately tell what direction sounds are coming from.

Less amplification required. A phenomena known as “binaural summation” means that the hearing aids can be set at a lower and more natural volume setting than than if you wore only one hearing aid.

Head shadow effect. High frequencies, the part of your hearing that gives clarity and meaning to speech sounds, cannot bend around your head. Only low frequencies can. Therefore if someone is talking on your unaided side you are likely to hear that they are speaking, but be unable to tell what they have said.

Noise reduction. The brain has it’s own built in noise reduction which is only really effective when it is receiving information from both ears. If only one ear is aided, even with the best hearing aid in the world, it will be difficult for you to hear in background noise as your brain is trying to retain all of the sounds (including background noise) rather than filtering it out.

Sound quality. We are designed to hear in stereo. Only hearing from one side sounds a lot less natural to us.

What are the benefits of rechargeable hearing aids?

For most people, the main benefit of a rechargeable hearing aid is simple convenience. We are used to plugging in our phones and other devices overnight for them to charge up. 

For anybody with poor dexterity or issues with their fingers, having a rechargeable aid makes a huge difference as normal hearing aid batteries are quite small and some people find them fiddly to change.

One downside is that if you forget to charge your hearing aid, then it is a problem that can't be instantly fixed. For most a 30 minute charge will get you at least two or three hours of hearing, but if you are the type of person who is likely to forget to plug them in regularly then you're probably better off with standard batteries.

Rechargeable aids are also a little bit bigger and are only available in behind the ear models.

Finally, just like with a mobile phone, the amount of charge you get on day one is not going to be the same as you get a few years down the line. Be sure to ask what the policy is with the manufacturer warranty when it comes to replacing the battery.


Are behind the ear aids better than in the ear aids?

For most people, the answer is yes. But it's never that simple.

The majority of hearing problems affect the high frequencies a lot more than the low ones. Therefore open fitting hearing aids sound a lot more natural and ones that block your ears up can make your own voice sound like you are talking with your head in a bucket. Therefore in-ear aids tend to be less natural.

However the true answer is we can't tell until we have had a look in your ears to assess the size of your ear canal, and until we have tested your hearing to see which frequencies are being affected.

People with wider ear canals tend to have more flexibility, also there are open fitting modular CIC hearing aids now that do not block your ears.

There is also the age old rule to consider, that a hearing aid will not help you if it's sat in the drawer gathering dust. If the only hearing aid you would be happy wearing is one that people can't see, then that's what you should get.

Most people can adapt to any type of hearing aid, as long as they know what to expect. Have an honest conversation with your audiologist as to what your needs are.

What are channels, and how many do I need?

Generally speaking, six or more. Unless it's none at all.

The number of channels a hearing aid has is often a simplistic way an audiologist will use to explain why one hearing aid is better than another, but channels are complex and it is really not that straightforward.

Hearing aids amplify sounds of different frequencies by different amounts. Most people have lost more high frequencies than low and therefore need more amplification in the high frequencies. The range of sounds you hear are split into frequency bands or channels and the hearing aids are set to provide the right amount of hearing at each frequency level.

Less than six channels and this cannot be done with much accuracy, so six is the magic number. However, a six channel aid is typically very basic with few other features and is suitable only for hearing a single speaker in a quiet room. The number of channels is not what you should be looking at, it's more the rest of the technology that comes with them.

As a final note, different manufacturers have different approaches. One method is not necessarily better than any other. For example some manufacturers have as many as 64 channels in their top aids. Most tend to have between 17 and 20. One manufacturer has no channels at all.

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When we refer to a product as 'Superseded', we mean that there is a newer range available which replaces and improves on this product.


Older Model

When we refer to a product as an 'Older Model', we mean that it is has been superseded by at least two more recent hearing aid ranges.