Let your good ear do the work

Reconnect and fully engage in conversation, regardless of which side the sound is coming from.

Hearing loss in one ear

Although hearing loss often affects both ears it is not uncommon that only one side is affected or that the two sides are affected to different degrees.

If hearing loss is present in one ear only, it is called single-sided hearing loss or unilateral hearing loss - or single-sided deafness (SSD) If the hearing loss is profound.

The distinction between unilateral and bilateral hearing loss is important as hearing loss in one ear can be treated differently than hearing loss that affects both ears.

Hearing aids for single-sided hearing loss

CROS (and BICROS) hearing aids make use of the fact that a person with hearing loss in one ear still hears well (or better) with the other ear.

CROS stands for ‘Contralateral Routing of Signal’ and consists of two parts:

  • the CROS device with a microphone to pick up sounds and voices from the non hearing ear and wirelessly transmit them to the hearing aid
  • the hearing aid to receive the signal from the non hearing ear and play it to your good ear

A CROS hearing aid will transmit sound and voices to let your good ear hear for both your ears. If you have good hearing in one ear and impaired hearing in the other, then a CROS hearing aid will work for you.

BICROS stands for “bilateral contralateral routing of signals” and describes a hearing aid system with one microphone contained in a hearing aid at each ear. The microphones lead to a single amplifier and receiver in the better hearing ear. A BICROS solution can be used in cases where the “good” ear has significant hearing loss as well as the “bad” ear.

Wherever you want

Enables you to have a conversation in quiet and noisy surroundings without having to reposition yourself.

Just switch it on

Requires no surgical procedures. Simply switch it on and enjoy hearing from both sides.

Almost invisible

So small and discreet you can wear it without it being noticed.

CROS II will transmit sound and voices to let your good ear hear for both your ears.
Phonak CROS B - The smart solution for single-sided hearing loss

Phonak CROS B - The smart solution for single-sided hearing loss

You know the situation: you’re in a noisy room and can’t hear your partner or colleagues because they’re not positioned on the side of your good ear, or you are on the phone and unaware of your environment. If this sounds familiar, Phonak CROS B is the smart solution for you.

Find out more

Phonak Roger™ Focus

The discreet wireless solution for children

Roger™ Focus is the behind-the-ear receiver based on the Roger wireless technology. It consists of two parts:

  • a behind-the-ear receiver worn on your good ear which receives the signal streamed from any Roger microphone

  • a Roger microphone which picks up voices and sends them directly to the Roger Focus and into your ear


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