Signia CROS/BICROS Silk X Transmitter
Signia CROS/BICROS Silk X Transmitter review: instant-fit CIC design, priced at ₹29,490 at HearClear India. Who needs it & how it works.
About CROS/BICROS Silk X Transmitter
The Signia CROS/BiCROS Silk X Transmitter is designed specifically for people who have little to no usable hearing in one ear — a condition called single-sided deafness (SSD) — and functional hearing in the other. The transmitter sits invisibly inside your poorer ear as a compact, instant-fit CIC (completely-in-canal) device. It picks up sounds and speech coming from your deaf side and wirelessly streams that audio to a compatible Signia hearing aid worn on your better ear, so you no longer miss conversations happening on your left or right. The fit is instant, meaning no custom impressions or multi-week wait — soft silicone sleeves allow most people to wear it comfortably from the very first appointment. Because the Silk X sits deep in the canal, it is virtually invisible to others, which matters to many adults who are self-conscious about wearing hearing devices. The transmitter itself does not process or amplify sound for the ear it sits in; its sole job is to capture audio from that side and relay it in real time, so you experience a more natural sense of where sound is coming from. Users commonly report that group conversations, restaurant settings, and situations where speakers move around the room become noticeably less exhausting when sounds from both sides reach the brain together. The Silk X Transmitter pairs with Signia's Silk X hearing aid on the better ear to complete the BiCROS system, or with select other Signia receiver aids for a standard CROS setup. Battery life on the transmitter runs on standard size-10 zinc-air disposable cells. Connectivity through the accompanying Signia app lets the wearer make programme adjustments discreetly from a smartphone without touching either device. This product is not the right choice if you have measurable, aidable hearing loss in both ears — in that case, two separate hearing aids would serve you better. It is also not suitable as a standalone purchase; it must be paired with a compatible Signia hearing instrument on the opposite ear to function. People with very narrow or unusually shaped ear canals may find that even the instant-fit sleeves need to be reviewed by an audiologist before the fit feels secure. At ₹29,490, the Signia CROS/BiCROS Silk X Transmitter is priced as the transmitter unit alone; you will need to budget separately for the receiving hearing aid. If you are unsure whether single-sided deafness or a CROS/BiCROS configuration is right for you, the best starting point is a detailed hearing assessment. Book your free hearing test at any of HearClear India's 41+ clinics and let one of our audiologists map your hearing profile before you invest.
Key specifications
- Instant-fit CIC style — no custom impressions needed
- Wireless CROS/BiCROS transmission to compatible Signia aids
- Runs on standard size-10 zinc-air disposable batteries
- App-compatible for discreet smartphone programme control
Who this is for
- Best for adults with single-sided deafness who miss speech and sounds originating from their non-hearing side.
- Best for professionals in meeting-heavy roles where speakers frequently sit or stand on the poorer-hearing side.
- Best for people who want a virtually invisible transmitter device without waiting weeks for a custom-moulded shell.
- Best for existing Signia X-series hearing aid users on one ear who need a matched transmitter to complete their CROS or BiCROS setup.
How it compares
- vs a standard CIC hearing aid: a standard CIC amplifies sound in an ear with aidable hearing loss, whereas the Silk X Transmitter is solely a wireless relay device for an ear with no usable hearing.
- vs a bone-anchored hearing system (BAHS): a BAHS requires a surgical implant or a headband worn on the skull, while the Silk X Transmitter is a non-surgical, removable in-canal device with no procedure required.
- vs the Signia CROS Pure Charge&Go X Transmitter: the Pure Charge&Go model sits behind the ear and offers rechargeable batteries, whereas the Silk X Transmitter is a canal-worn, disposable-battery option that prioritises invisibility over rechargeability.
Frequently asked questions
What is the difference between a CROS and a BiCROS setup with this transmitter?
In a CROS setup, the transmitter sends sound from your non-hearing ear to a receiver worn on a normal-hearing ear. In a BiCROS setup, the receiving ear also has some hearing loss, so the receiver is a hearing aid that both picks up the transmitted signal and amplifies surrounding sound for that ear.
Does the Silk X Transmitter need to be custom-moulded to my ear?
No. The Silk X uses pre-made silicone sleeve tips in multiple sizes for an instant fit, so you can typically wear it on the same day as your clinic appointment without waiting for custom shells to be made.
Which Signia hearing aids are compatible with this transmitter?
The Silk X Transmitter is designed to work with compatible Signia Silk X and select other Signia X-series hearing aids on the opposite ear. Your audiologist at HearClear will confirm which receiver device matches your prescription before purchase.
What battery size does the Signia Silk X Transmitter use?
The transmitter runs on size-10 zinc-air disposable batteries, which are widely available at pharmacies and all HearClear clinics across India.
Can I control the transmitter from my phone?
Yes. The Signia app allows you to adjust settings and switch programmes on compatible Signia devices, including the Silk X system, directly from your smartphone without touching the device in your ear.
Is ₹29,490 the total cost for a complete CROS or BiCROS system?
No. The ₹29,490 price covers the transmitter unit only. You will need to purchase a separate compatible Signia receiving hearing aid for your better ear to complete the system; your audiologist can provide a combined quote.