1. Introduction
The Rexton InoX 5A is an advanced invisible In-The-Canal (ITC) and Completely-In-Canal (CIC) digital hearing aid designed for individuals with mild to severe hearing loss. Featuring 8 channels and mobile phone app programming capabilities, it offers a comprehensive solution for personalized hearing support. This manual provides essential information for the proper setup, operation, and maintenance of your InoX 5A hearing aid.
Image: Rexton InoX 5A hearing aids with Google Play and App Store logos, indicating mobile app compatibility.
2. Product Overview
The InoX 5A hearing aids come in two main types: CIC (Completely-In-Canal) and ITC (In-The-Canal). Both models are designed for discreet wear and offer advanced digital sound processing.
2.1 Components
Image: Diagram illustrating the key components of the hearing aid, including the Removal Cord, Battery Compartment, Microphone, and Click Dome/Sleeve.
- Removal Cord: Used to easily remove the device from the ear.
- Battery Compartment: Houses the battery (CIC uses 10A, ITC uses 312A).
- Microphone: Receives sound from the environment.
- Click Dome or Sleeve: Ensures an instant fit in the ear canal.
2.2 Model Differences (CIC vs. ITC)
Image: Visual comparison of CIC and ITC hearing aid models from different angles (side, front, top).
While both models are designed to be invisible, they differ slightly in size and battery type. The ITC model is slightly larger to accommodate a larger battery, offering longer battery life.
2.3 Key Features
- 8 channels fully digital signal processing for natural, low-distortion sound.
- Adaptive feedback cancellation control to minimize whistling.
- Intelligent noise reduction for effective background noise elimination.
- Nano coating housing resists moisture and sweat.
- Mobile phone app for program switching, volume adjustment, and programming.
Image: Graph illustrating the effectiveness of intelligent noise reduction, comparing sound levels before and after processing.
Image: Hearing aid with water splashes, highlighting its nano coating for moisture and sweat resistance.
3. Setup
3.1 Initial Preparation
Before using your hearing aid, ensure you have the correct battery type (10A for CIC, 312A for ITC) and the appropriate click dome or sleeve for your ear canal.
3.2 Step-by-Step Setup
Image: A visual guide detailing the four steps for using the hearing aid: inserting the eardome, installing the battery, wearing the device, and removing it.
- Insert the Eardome: Gently push the click dome or sleeve onto the hearing aid until a "click" sound is heard, indicating it is successfully inserted.
- Put Battery in Battery Compartment: Open the battery compartment. Insert the battery with the "+" side facing up. Close the compartment.
- Download and Connect to Mobile App:
- Download the "Fit2Go" app from the App Store (iOS) or Google Play (Android).
Image: Screenshots of the Fit2Go mobile app interface, demonstrating sound comfort, equalizer, and hearing aid selection features.
- The mobile fitting app requires an access code, which will be provided to you after shipping your hearing aid.
- Follow the in-app instructions to pair your hearing aid with your smartphone.
4. Operation
4.1 Wearing the Hearing Aid
With the removal cord facing downwards, gently insert the hearing aid into your ear canal until it sits comfortably and securely.
4.2 Using the Mobile App
The Fit2Go app provides comprehensive control over your hearing aid settings:
- Sound Comfort: Adjust volume and sound quality (duller/sharper).
- Equalizer: Fine-tune specific frequency bands (e.g., 500 Hz, 1 kHz, 2 kHz, 4 kHz).
- Program Switching: Select from pre-configured sound profiles (e.g., for quiet environments, noisy situations).
- Personalized Fitting: The app allows for easy self-fitting based on your hearing loss diagram.
Video: Demonstrates the Signia app interface and how the hearing aid interacts with a smartphone for control.
4.3 Removing the Hearing Aid
To remove the hearing aid, gently pull on the removal cord until the device comes out of your ear canal.
5. Maintenance
5.1 Cleaning
Regular cleaning is crucial for optimal performance and longevity. Use the provided brush to gently clean the microphone port and remove any earwax or debris from the click dome/sleeve. Do not use water or cleaning solutions directly on the hearing aid unless specifically instructed.
5.2 Battery Replacement
Replace batteries as needed. The average battery life is approximately 5 days for CIC models (using size 10 batteries) and 7 days for ITC models (using size 312 batteries). The app may provide a low battery warning.
5.3 Storage
When not in use, store your hearing aid in the provided storage case to protect it from dust, moisture, and physical damage.
Image: Contents of the product package, showing the storage case, hearing aid, cleaning brush, sleeves and domes, manual, and warranty card.
6. Troubleshooting
- No Sound or Weak Sound:
- Check battery: Ensure it's correctly inserted and not depleted.
- Clean the hearing aid: Remove any earwax or debris from the microphone and eardome.
- Adjust volume: Use the mobile app to increase the volume.
- Whistling/Feedback:
- Re-insert the hearing aid: Ensure it's properly seated in the ear canal to create a good seal.
- Check eardome/sleeve: Make sure it's the correct size and not damaged.
- Adjust settings: The adaptive feedback cancellation feature should minimize this, but further adjustments via the app may help.
- Difficulty Connecting to App:
- Ensure Bluetooth is enabled on your phone.
- Restart both the hearing aid and your phone.
- Verify you have the correct access code for the Fit2Go app.
- Sound Quality Issues:
- Use the equalizer in the Fit2Go app to fine-tune sound.
- Consult your audiologist or the seller for pre-fitting assistance if the issue persists.
7. Specifications
7.1 General Specifications
| Feature | CIC Model | ITC Model |
|---|---|---|
| Max. Output/Gain | 113/50dB | 116/55dB |
| Fitting Range | <65dB (Mild to Moderate) | <80dB (Mild to Mildly-Severe) |
| Weight | Approx. 0.7g | Approx. 1.1g |
| Size | Approx. 1.8*0.6*1.2cm | Approx. 1.9*0.9*1.25cm |
| Channels | 8 | 8 |
| Programs | 6 | 6 |
| Feedback Cancellation | ✓ | ✓ |
| Speech and noise management | ✓ | ✓ |
| Sound Smoothing | ✓ | ✓ |
| Waterproof Housing | ✓ | ✓ |
| Mobile Fitting App | ✓ | ✓ |
| Battery Life (cell zinc air) | ~60 h (Approx. 5 days) | ~120 h (Approx. 7 days) |
| Battery Size | 10 | 312 |
| Frequency Range | 100-8100 Hz | 100-7800 Hz |
Image: Product Specifications table comparing CIC and ITC models.
7.2 Technical Data
| Type | ITC | CIC | ||
|---|---|---|---|---|
| 2 ccm coupler | Ear simulator | 2 ccm coupler | Ear simulator | |
| Output sound pressure level at 1.6 kHz | 116 dB SPL | 121 dB SPL | 113 dB SPL | 118 dB SPL |
| Peak | 127 dB SPL | 113 dB SPL | 124 dB SPL | - |
| HFA-OSPL 90 | 112 dB SPL | - | 109 dB SPL | - |
| Full on gain (FOG) at 1.6 kHz | - | 55 dB | - | 53 dB |
| Full on gain (Peak) | 55 dB | 65 dB | 50 dB | 61 dB |
| HFA-FOG | 49 dB | - | 46 dB | - |
| Reference test gain | 35 dB | 45 dB | 33 dB | 43 dB |
| Frequency range | 100-8100 Hz | 120-8100 Hz | 100-7800 Hz | 100-8000 Hz |
| Equivalent input noise | 21 dB SPL | 22 dB SPL | 21 dB SPL | 21 dB SPL |
| Total harmonic distortion at 500 / 800 / 1600 Hz | 2 / 2 / 1 % | 3 / 4 / 5 % | 3 / 3 / 2 % | 5 / 6 / 4 % |
| Battery voltage | 1.3 V | 1.3 V | 1.3 V | 1.3 V |
| Battery current drain | 1.0 mA | - | 1.1 mA | - |
| Battery life (cell zinc air) | ~120 h | - | ~60 h | - |
| 800-960 MHz | <-6 dB SPL | - | <-6 dB SPL | - |
| 1400-2000 MHz | <-24 dB SPL | - | <-24 dB SPL | - |
| ANSI C63.19 | M4 | - | M4 | - |
Image: Technical Data table for ITC and CIC models, including output sound pressure, gain, frequency range, and battery specifications.
7.3 Estimated Hearing Loss Categories
Image: Table categorizing hearing loss levels (Normal, Mild, Moderate, Moderate to Severe, Extremely Severe) based on the decibel levels of various sounds.
8. User Tips
- Fitting Range: The CIC and ITC models are suitable for mild to moderate hearing loss. They are not recommended for severe hearing loss. Please verify your hearing loss level against the product specifications.
- Pre-fitting Service: If you have an audiogram, you can send it to the seller for pre-fitting assistance to ensure the device is suitable for your specific needs.
- App Access Code: Remember that the Fit2Go mobile app requires an access code, which will be provided to you after the hearing aid is shipped.
- Comfortable Fit: Experiment with different click domes or sleeves to find the most comfortable and secure fit for your ear canal. A proper seal helps prevent feedback.
9. Warranty & Support
Your Rexton InoX 5A hearing aid comes with a warranty. Please refer to the included Warranty Card in your package for details on coverage and duration.
For technical support, fitting assistance, or any questions regarding your hearing aid, you can contact the seller. Professional audiologists are available to help with pre-fitting based on your hearing loss diagram.
