Cros Hearing Aid With Bluetooth

What Is A Bi/cros System

Phonak CROS II – The smart solution for single-sided hearing

A CROS system is worn when the individual has one ear with unaidable hearing, and one ear with normal hearing. A microphone, worn on the bad ear, picks up the signal and transmits it to a receiver worn on the ear with normal hearing.

A BiCROS system is worn when the individual has one ear with unaidable hearing , and the other ear has a hearing loss. A microphone, worn on the bad ear, picks up the signal and transmits it to a hearing aid worn on the better hearing ear. The hearing aid then amplifies the signal to a level that the user can hear.

Figure 2. BiCROS System

Successful CROS users will find several improvements to their daily communication difficulties. These include:

  • An improved ability to hear people when speaking to their poorer ear
  • An improved ability to hear in background noise and,
  • Better awareness of sounds in the environment.

Unlike other SSD solutions, the CROS/BiCROS is easily fit in the audiologists office and does not require any surgery. Since the CROS/BiCROS device does not amplify sound to the poorer ear, it is unlikely that users will experience a significant improvement in ability to localise sounds.

However, some clients do report subjective improvements in localisation ability.

Examples where Cros/BiCros is of benefit are:

So gone are the days, where you had to make sure you have people sitting on your “good” side.

Batteries Repairs And Replacements

If you have an NHS hearing aid, you can get free batteries and repairs from the NHS hearing aid service who fitted your hearing aids.

Ask your audiologist about how to obtain batteries and request servicing and repairs.

You may need to come in for an appointment, or you may be able to send off for a battery or repair in the post.

Your local hearing aid service can also replace hearing aids that have been lost or damaged, although there may be a charge for this.

If you have a private hearing aid, contact your hearing aid provider if you need it repaired or replaced.

You may have to pay for this service if it’s not already included in your payment plan.

The Signia Cros Hearing Aid

Hear what matters to you even with single-sided deafness

Signia CROS hearing solutions provide the ultimate choice of styles and fittings for people with untreatable hearing loss in one ear. There are even CROS devices with convenient lithium-ion charging and Bluetooth connectivity. There is an optimal Signia CROS solution for you.

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Excellent Speech Understanding In Noise

Using our signature Binaural VoiceStream Technologyâ¢, CROS B wirelessly transfers sound from the clientâs non-hearing ear to the Belong hearing aid on the better-hearing side. Thanks to this proven binaural beamforming technology, CROS B has the ability to create a very narrow beamforming pattern, resulting in a 3.8 dB improvement in speech intelligibility in noise**, compared to no Binaural VoiceStream Technologyâ¢. For clients, this means excellent speech understanding in noise.

Cros & Bicros Transmitter

Phonak Digital Hearing Aids

The device itself is an intelligent transmitter of audio, like other CROS devices, it picks up the audio from the deaf or extremely bad ear and transmits it to the good or better ear. They have based the device on the miniRITE-T which means it is powered by a 312 battery and it has a volume control. The device can be used in both a CROS setup and a BiCROS setup. The volume control can be used to increase, or decrease, the volume of the streaming audio.

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Dedication And Expertise In The Cros Segment

Since the introduction of the industryâs first wireless CROS solution in 2011, Phonak has continued to deliver proven technology that has helped change the lives of people with single-sided deafness. That dedication has paid off â hearing care professionals are happy*:

  • 85% of professionals are satisfied with Phonak CROS.
  • 89% of professionals who have fit Phonak CROS iwill fit it on another patient.
  • 89% of professionals would recommend Phonak CROS.

How Does Cros Hearing Aid Work

A user who needs hearing in one ear but not the other often chooses to use CROS hearing aids due to their functionality. CROS hearing aids work by picking up surrounding sounds via a microphone on one hearing aid and transmitting the sound to the other hearing aid. As two hearing aids are needed to work, the user must wear two hearing aids. On the bad, hearing-impair ear, the user will wear the hearing aid with a microphone to pick up the sound theyd usually miss. All the noises and sounds are transmitted to the hearing aid worn on the good, non-impaired ear.

The idea is for users who have trouble hearing in one ear to, in a sense, regain that hearing by using a microphone. For example, if someone was in a position where the sound primarily came from their bad ear side, the wearer could still hear through the help of the CROS hearing aid. Likewise, a user driving but cannot hear sounds out of their left ear may greatly benefit from having a microphone on their left side.

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What Are Cros Hearing Aids Used For

CROS hearing aids are great if you have one ear with normal or extremely good hearing but have lost hearing in the other ear. Specifically, if in one ear you have severe or profound unilateral hearing loss also known as single sided deafness.

CROS hearing aids come in a pair and are made up of a conventional hearing aid that sits in the hearing ear, and a device that sits in the ear with no hearing. The device in the ear with no hearing picks up sound, and sends it to the hearing aid in the hearing ear.

This can happen wirelessly or through a wire around the back of your neck depending on your device.

You can get Behind-the-Ear and In-the-Ear versions.

You can also get a type of CROS that functions through bone conduction. A device is surgically implanted and the system works vibrations being sent through the bones of the ear canal to the ear with hearing loss.

Wondering Which Bluetooth Hearing Aids To Get

Signia CROS Story | Signia Hearing Aids

Your main consideration when buying a hearing aid should be how it helps your hearing, but if youre comparing similar models, it can help to think about the following factors to find the right Bluetooth hearing aid for you:

  • Compatible devices: Some Bluetooth devices allow you to connect directly to your hearing aids without using a streamer. If you want a direct connection, make sure your Bluetooth hearing aid works with whatever devices you already have.
  • Sound environment: Do you primarily need help hearing one-on-one conversations or in noisy settings such as restaurants, music venues or large groups? Hearing aids can feature different types of microphones, and these microphones might help more in certain environments.
  • Battery life: Bluetooth hearing aids tend to drain their batteries faster than traditional hearing aids. When your hearing aid runs out of juice, you normally have to manually replace the battery. However, many people prefer the convenience of rechargeable hearing aids. Rechargeable batteries usually have to be charged every night, while disposable batteries last about a week on average.
  • Adjustability: Can the hearing aids be adjusted or do you have to make an appointment with a hearing aid specialist to get them dialed in? Most people prefer the convenience of adjustable hearing aids, but this function isnt always available.

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Features Of Hearing Loss In One Ear

First, a few words should be said about hearing loss in one ear. Its a serious problem, which is not always given sufficient attention.

One of these problems is the so-called head-shadow effect. This simply means that as sound has to travel from one side to the other, there is enough volume lost that can create a greater difficulty in hearing even from the good ear. Its especially noticeable in noisy places such as a stadium, restaurants, bars, weddings, etc.

Our leading audiologist, Dr. Stella Fulman has long been convinced that people with hearing loss in one ear are in no hurry to seek help. Unfortunately, the opposite is true. The system of hearing and brain organs is built in such a way that a problem in one ear affects the functioning of the entire system. Other difficulties arise over time.

People with common bilateral hearing loss use hearing aids. What about hearing loss in one ear?

Fortunately, modern medicine has high-tech devices, which help in such a situation. One of them is CROS and BiCROS hearing aids, which are specially designed to solve hearing loss in one ear!

What Are Cros And Bicros Hearing Aids

For years, audiologists have looked forward to the introduction of the new CROS / BiCROS technology based on digital wireless signal transmission. These devices have shown high efficiency. It should be noted that CROS stands for Contralateral Routing of Signals.

CROS devices are designed for people with hearing loss in one ear. BiCROS are designed for people with hearing loss in both ears but where one of the ears is so poor in hearing that a traditional hearing aid will not help. According to statistics, the problem is reported annually in more than 60 thousand Americans. There are various reasons, which cause hearing loss in one ear. We wrote about this in detail in another article, feel free to look back for reference.

It is important to understand that hearing loss in one ear makes every minute of delay critical. Therefore, at the first symptoms, you should immediately seek help. Only a specialist will be able to determine the cause of the problem and prescribe the correct treatment, including the use of CROS or BiCROS devices if the hearing can not be recovered.

Whats the difference between CROS and BiCROS hearing aids? To answer this question, lets take a look at these devices separately.

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What Is Unilateral Hearing Loss And How To Manage It

Unilateral hearing loss is a condition in which hearing functions normally in one ear while the other ear experiences significant hearing loss. There are quite a few issues that can arise when you are experiencing UHL. For instance, a you might have trouble following conversations in environments with lots of background noise, like public events or a dinner party.

You might also have trouble with sound localization , tinnitus, and problems detecting sound from the side of the head that has hearing loss. If you live with UHL, you might often struggle in certain everyday situations and experience increased stress and anxiety. These issues occur because unilateral hearing loss interferes with what is known as directional hearing.

Signia Cros Pure Charge& go X

Signia Hearing Aids » Absolute Hearing Solutions

Hear what matters with your ultimate rechargeable CROS devices

Signia CROS Pure Charge& Go X is a small behind-the-ear device with full Bluetooth connectivity. Thanks to its game-changing acoustic-motion sensor technology, Signia CROS Pure Charge& Go X understands your personal hearing environment in greater detail than ever to deliver sound precisely tailored to you.


Your unaidable hearing loss in one ear should not stop you hearing what matters to you. With the most advanced CROS/BiCROS solutions, Signia devices ensure brilliant sound so you can hear conversations and sounds coming from both sides. With CROS X hearing solutions it is possible to hear everything and everyone in crystal clear quality.

Wherever you go. Whether youre looking for rechargeability, Bluetooth® streaming or discreet design, Signia Xperience provides the optimal solution for you.

Hearing With Ease

The game changing technology of CROS X devices understands your personal hearing environment in greater detail than ever to deliver sound precisely tailored to you.

Thanks to the wireless transmission from the unaidable ear to the ear with better hearing, you can follow conversations effortlessly, even when someone is speaking to you on your unaidable side.

Signia CROS Silk X

Nearly invisible in the ear for complete discretion Signia Xperience technology for a superior hearing experience for a quick and easy instant-fit Remote control via Signia app and miniPocket

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Other Key Features Of Phonak Cros P Hearing Aids

StereoZoom: Helps support and improve speech understanding in challenging and noisy environments. This is only included in Premium and Advanced performance levels.

CROS Balance: This feature adjusts the loud sound ratio between the CROS device and the Paradise hearing aid.

AutoSense OS 4.0: This feature automatically understands your soundscape in real-time then offers a seamless listening experience.

What Are Bluetooth Hearing Aids And What Do They Do

Bluetooth-enabled hearing aids facilitate wireless connectivity with Bluetooth-compatible devices, including your smartphone, music player, computer, and television. With Bluetooth, you can stream sound directly to your hearing aids.

Here are a few of the things you can do with Bluetooth digital hearing aids that you cant with traditional hearing aids:

  • Hands-free calls You can take calls without lining up your phone with the hearing aid microphone.
  • Audio on the go You dont need to take out your hearing aids to put in headphones. Instead, stream audio directly to your hearing aids while walking or working out. Another perk? You can retain your ability to hear whats going on around you.
  • Control personal volume You can watch TV with your family or friends and adjust your sound without changing the volume for everyone.
  • Smartphone app control Pair your smartphone with your hearing aids for easy hearing aid control. You wont need to manipulate your hearing aids directly instead you use the app to adjust settings like volume and connectivity.

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Bottom Line: Are Bluetooth Hearing Aids Better

Bluetooth hearing aids offer technological capabilities that other hearing aids dont. However, this comes at the cost of increased prices and decreased battery lives. The value of this tradeoff depends on how often you actually use your hearing aids Bluetooth capabilities. If you frequently find yourself taking out your hearing aids to use headphones or earbuds, a Bluetooth hearing aid may be right for you.

For related info, check out our picks for the top invisible hearing aids.

Tap Control For Easy Access

Phonak CROS II

With a motion sensor-based hearing aid, it makes it possible to steer Bluetooth® features via a double tap on the pinna. This function allows the wearer to accept/end calls from connected cell phones, pause/resume streaming from connected Bluetooth® devices and gain access to Bluetooth®-based Voice Assistance apps. Patients can answer calls while on the go or ask their Voice Assistant for driving directions with a simple double tap of their ear.

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What Are The Disadvantages Of These Devices

Despite all their advantages, CROS / BiCROS devices have several disadvantages. The main one is the impossibility of sound localization. After all, devices transmit information from all sides to only one ear, therefore, a person cannot determine the location of the sound source, especially in a noisy place.

Twinlink Dual Streaming An Industry First

Oticon CROS is the worlds first solution for CROS/BiCROS fittings offering TwinLink, an innovative technology featuring simultaneous NFMI and 2.4 GHz Bluetooth® low energy streaming capability. TwinLink makes it possible to connect to external audio streaming, like a television, while simultaneously enjoying a conversation with someone positioned on the poorer ear.

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A Full Day Of Hearing From Both Sides With No Battery Hassles

This means greater convenience for everyone. Clients simply charge their CROS solution overnight and use it all day. Thanks to a built-in lithium-ion rechargeable battery, thereâs no more dealing with disposable batteries that are small and difficult to handle, no more remembering to carry spare batteries, no more inconvenient battery changes.

And because thereâs no need for you to explain battery issues and maintenance, you get more counseling and demo time with your clients.

What Is A Cros System

Phonak Audeo B

A Contralateral Routing Of Signals hearing aid is a type of hearing device that is used to treat unilateral hearing loss . It takes sound from the ear with weaker or no hearing and transmits the sounds to the ear with better hearing. In point of fact, the CROS device usually is not a full hearing aid. Great thanks to Signia who produced the images that have been used here.

It has microphones and an amplifier chip but no speaker, instead it transmits the sound wirelessly to a receiving hearing aid on the better ear. It may seem strange to wear a hearing aid on your good ear. However, all it is doing is delivering the sound from your bad ear. It isn’t amplifying any sound as such.

This type of set-up allows you to have access to sound from both sides of your head which makes a tremendous amount of difference. God gave you two ears for a reason, and it wasn’t just to make you pretty.

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Cros Hearing Aids: How They Transmit Sound

In other words, the transmitter takes the place of your ear with hearing loss and acts as a replacement ear. The transmitting devices instantly sends sounds from your bad ear to your good ear and you can hear them clearly. This means no more turning your head to hear someone speak, and no more asking people to talk into your good ear!

Additionally, CROS hearing aids do not work as volume amplifiersthey simply transfer sound from the poor-hearing side to the good-hearing side. Sounds will not be too loud or jarring. Rather, youll hear sounds at their normal volume.

Cros Hearing Aids: What They Are And How They Can Help You

CROS hearing aids are specially-programmed hearing aids specifically for single-sided hearing loss. A person wearing CROS hearing aids wears two tiny hearing aids behind their ears. On the ear with hearing loss, the hearing aid has a transmitter which sends the sounds it captures to the other, normal hearing ear.

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