Oticon CROS Technical Data Sheet
The Oticon CROS is a transmitter for individuals with single-sided deafness.
CROS / BICROS
By establishing a pairing with a compatible hearing aid, the Oticon CROS can be used as an amplification system for Contralateral Routing of Signal (CROS). The CROS transmitter's microphone picks up sound from the ear with poorer hearing. It then sends the sound to the hearing aid worn on the ear with better hearing using near-field magnetic induction (NFMI) communication. If there is hearing loss in the ear with better hearing, BiCROS should be used.
360° Sound Experience, OpenSound Experience
The Oticon CROS is equipped with the special OpenSound Navigator, designed to transmit sound to Oticon hearing aids. This feature analyzes the surrounding sound environment, balances sound, and removes unwanted noise to deliver a 360° soundscape.
TwinLink™ and Dual Streaming
Communication between the transmitter and the receiving hearing aid in the Oticon CROS utilizes Oticon TwinLink technology, which uses NFMI. TwinLink technology delivers sound from the ear with poorer hearing to the ear with better hearing, while also enabling streaming from external audio devices. This is achieved by using 2.4 GHz Bluetooth low energy communication for transmitting audio from external devices, while NFMI is used for the CROS transmission function. This means users can listen to music or watch TV while still being aware of their surroundings.
Technical Data
| Name/Model | Style | Ear-piece | Color | System Characteristics | Compatible Models | Water Resistance | Battery Size | Estimated Operating Time | Status Indicator | Environmental Conditions | Acoustics | Frequency Bandwidth | Wireless Specifications | Wireless Communication Range | Frequency | Modulation Method | Duty Cycle | Magnetic Field Strength | Standards and Approvals (FCC/IC) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oticon CROS / CROS01 | Oticon Opn S miniRITE design | Open dome or standard speaker-compatible ear-piece for Oticon hearing aids | 7 colors matching the hearing aid | Dual microphones pick up sound; Signal processing and noise reduction before transmission; Wireless transmission to Oticon hearing aids | Oticon Opn S1, Oticon Opn S2, Oticon Xceed series, Oticon Opn Play 1, Oticon Xceed Play series. For the latest compatible models, see: http://www.oticon.global/compatibility | IP68 (daily water resistance) | 312 | 85-105 hours | Audible notifications from the hearing aid | Operating Humidity: 5%-93% (non-condensing); Operating Temperature: 1-40°C; Storage and Transport Temperature: -25-65°C | G722 encoding; Up to 10kHz (depending on the receiving hearing aid) | 17 cm (distance between both ears) | 3.84 MHz | MFSK | 50% | -51 dBµA/m @10m | The Oticon CROS transmitter is equipped with the following wireless module: ID Number: FCC ID: U28AUMRTE IC: 1350B-AUMRTE |
Diagram Description
The diagram illustrates the CROS system. A transmitter is shown on the left, with a microphone picking up sound. This sound is transmitted wirelessly (NFMI) to a receiving hearing aid on the right. The diagram also shows a simplified representation of a human head with sound waves entering the ear with the transmitter and being directed to the other ear with the hearing aid.
