Rexton CROS BiCore R312 – Compatibility & Buying Guide | Japebo
If you’re looking for Rexton CROS BiCore R312 accessories or trying to confirm compatibility before you buy, you’re in the right place. This guide explains what the Rexton CROS BiCore R312 system is, which parts and accessories typically matter, and how to choose correctly so you avoid mismatches.
What is the Rexton CROS BiCore R312?
The Rexton CROS BiCore R312 is part of Rexton’s BiCore platform designed for people with single-sided deafness (SSD) or unaidable hearing on one side. In a CROS setup, the CROS unit on the poorer-hearing ear picks up sound and transmits it to a compatible hearing instrument worn on the better-hearing ear.
R312 refers to the size 312 battery format. That matters for day-to-day use and for any battery-related purchases, but compatibility for other parts (like earpieces and maintenance items) depends on the specific Rexton receiver/earpiece style used with your paired hearing instrument.
What “compatibility” means for Rexton CROS BiCore R312
When people search for Rexton CROS BiCore R312 accessories, they usually want help with one of these compatibility questions:
System compatibility: whether a CROS transmitter will pair with the correct Rexton BiCore hearing instrument on the better ear.
Physical fit: whether an ear-tip/earpiece style fits your device setup (this often depends on the receiver/earmold configuration used on the hearing instrument side).
Maintenance items: cleaning and protection parts that match your acoustics (wax protection, cleaning tools, drying or care products).
Important: CROS devices are not universal. For pairing and function, you must match the CROS transmitter with the correct compatible Rexton family/platform (BiCore), and the hearing instrument on the better ear must be set up to work in a CROS configuration.
How to make sure you’re choosing the right Rexton CROS BiCore R312 accessory
Use these checks before ordering:
Confirm the exact model name in your paperwork or in your hearing care app/settings: “Rexton CROS BiCore R312”.
Identify what you actually need: battery (size 312), daily care/cleaning, or parts tied to the hearing instrument side (earpieces, wax protection, etc.).
Check your ear-side setup: many replaceable parts attach to the hearing instrument on the better ear (not the CROS side). If you’re unsure, compare your current part to the product photos/specs before buying.
If anything is unclear, choose based on what you already use successfully (same size, same style, same attachment) or contact support with a photo of your current setup.
Common issues (and what usually fixes them)
“My CROS isn’t working / I’m not hearing from the bad side”
This is often related to pairing, enablement of CROS mode, or power. Start by confirming:
The device has a fresh size 312 battery and the battery door closes properly.
The CROS system is paired and configured by your hearing care professional (CROS must be enabled in the fitting software).
Both devices are being worn on the correct ears and are powered on.
“Sound is weak or intermittent”
Check for moisture, dirt build-up, and whether the hearing instrument side has a blocked ear-tip or wax protection system. Regular cleaning and correct maintenance items often solve this.
Buying Rexton CROS BiCore R312 accessories at Japebo
Once you’ve confirmed compatibility, you can order with confidence. If you’re purchasing maintenance items, try to match what you already use (same type and form factor). If you’re purchasing batteries, make sure you’re selecting size 312 for the R312 format.
If you’re unsure which replacement or care product fits your setup, the safest approach is to reference your current part and match it exactly—or contact Japebo support with the device name and a clear photo of the relevant component.
FAQ: Rexton CROS BiCore R312
Is the Rexton CROS BiCore R312 the same as a regular hearing aid?
No. A CROS device transmits sound from one side to the other; it doesn’t provide amplification for the poorer ear. It works together with a compatible hearing instrument on the better-hearing side.
What battery does the Rexton CROS BiCore R312 use?
As the name suggests, it uses a size 312 battery.
Do all Rexton accessories fit the CROS BiCore R312?
No. Compatibility depends on the platform/family (BiCore) and on the physical setup. Some items relate to the paired hearing instrument rather than the CROS transmitter.
How do I know which replacement parts to buy?
Match the exact type you already have (same shape/connection), or use product specs/photos to confirm. If you’re uncertain, get help before ordering to avoid mismatches.
Can I convert any Rexton hearing aid into a CROS system?
Only certain models/platforms support CROS configurations. The better-ear hearing instrument must be compatible and configured for CROS use.