1. Introduction
Thank you for purchasing the cheero Wireless Hearing Amplifier CHE-S-001. This device is designed to enhance your hearing experience, offering clear sound amplification with advanced noise suppression technology. It also functions as a pair of wireless earphones for music and calls. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.
Key Features:
- Noise Suppression: Significantly reduces background noise for clearer conversations.
- Individual Volume Adjustment: 5-level volume control for each earbud, adjustable by touch.
- Discreet Design: Looks like regular wireless earphones, allowing for inconspicuous use.
- Dual Functionality: Seamlessly switches between hearing amplification, music playback, and phone calls via Bluetooth.
- Long Battery Life: Up to 13 hours of continuous amplification (8 hours music playback) on a single charge, extended with the charging case.
- Technical Conformity Certified: Certified to technical standards under the Radio Law for safe and secure use.
2. Package Contents
Please check that all items are included in your package:
- cheero Wireless Hearing Amplifier (Left and Right earbuds)
- Charging Case
- USB-A to C Charging Cable
- Cleaning Brush
- Pouch
- Eartips (SS/S/M/L/LL sizes)
- Instruction Manual / Warranty Card (1 year)
Before First Use:
Remove the protective film from the charging contacts on the earbuds before placing them in the charging case.
3. Product Overview
Earbud Components:
- Multi-function Key: For various controls.
- Multi-indicator / Microphone: Status indicator and microphone for calls/amplification.
- Charging Terminal: Connects to the charging case.
- Eartip: Provides a comfortable and secure fit.
- Sound Output Port: Where the amplified sound is emitted.
Charging Case Components:
- USB-C Input Port: For charging the case.
- Battery Indicator: Shows the charging status of the case and earbuds.
4. Setup
4.1 Charging the Device
Before first use, fully charge the earbuds and the charging case.
- Place the earbuds into the charging case. Ensure the protective film has been removed from the charging contacts.
- Connect the provided USB-A to C charging cable to the charging case's USB-C input port and a commercially available USB power adapter (USB Type-A compatible).
- The battery indicator on the charging case will show the charging status. Once fully charged, the indicators will show a steady light.
4.2 Selecting and Attaching Eartips
The device comes with 5 sizes of eartips (SS/S/M/L/LL) to ensure a comfortable and secure fit. Choosing the correct size is crucial for optimal sound quality and to minimize howling.
- Try different eartip sizes to find the one that fits snugly and comfortably in your ear canal.
- Gently attach the selected eartip to the earbud's sound output port.
4.3 Wearing the Earbuds
- Identify the Left (L) and Right (R) earbuds.
- Insert the earbud into your ear canal, gently rotating it until it fits securely and comfortably. The multi-function key should be facing upwards.
Note on Howling Suppression:
The device is designed to suppress howling. When you remove the earbuds from the case and put them in your ears, sound amplification will start after approximately 10 seconds to prevent howling. Using the correct eartip size also significantly helps in preventing howling.
5. Pairing with a Smartphone (Bluetooth)
To use the device as wireless earphones for music or calls, you need to pair it with your smartphone via Bluetooth. The earbuds will automatically power on when removed from the charging case.
5.1 For iOS (iPhone) Users:
- Open the Settings app on your iPhone.
- Tap on Bluetooth.
- Ensure Bluetooth is turned On.
- In the list of devices, select CHE-S-001 (or a similar name like 'cheero Wireless Hearing Amplifier').
- Follow any on-screen prompts to complete the pairing process.
5.2 For Android Users:
- Open the Settings app on your Android smartphone.
- Tap on Connected devices or Bluetooth & device connection (names may vary by device).
- Tap on Pair new device or Bluetooth.
- Ensure Bluetooth is turned On.
- In the list of available devices, select CHE-S-001 (or a similar name like 'cheero Wireless Hearing Amplifier').
- Follow any on-screen prompts to complete the pairing process.
Note:
The device can function as a hearing amplifier even without being connected to a smartphone.
6. Operating Instructions
6.1 Basic Operation (Hearing Amplification)
- Power On: Remove the earbuds from the charging case. They will automatically power on.
- Start Amplification: After placing the earbuds in your ears, sound amplification will begin automatically after approximately 10 seconds.
- Volume Adjustment: Tap the multi-function key on either earbud to adjust the volume. Each tap cycles through 5 levels of individual volume for that earbud.
- Power Off: Place the earbuds back into the charging case. They will automatically power off and begin charging.
6.2 Using as Wireless Earphones (with Smartphone Connected)
Once paired with your smartphone, the device can be used for music playback and phone calls.
- Music Playback: Control music playback (play/pause, next/previous track) via your smartphone or by tapping the multi-function key (refer to the full instruction manual for specific tap controls).
- Phone Calls: When a call comes in, the device will automatically switch from amplification/music to call mode. Answer/end calls by tapping the multi-function key.
7. App Usage (Personalized Settings)
For a truly personalized hearing experience, download the companion app to adjust settings based on your hearing profile. The app allows for hearing level measurement and adjustment.
7.1 Installing the App
- Scan the QR code below or search for the app in your smartphone's app store (App Store for iOS, Google Play for Android).
- Install the app on your smartphone.
7.2 Initial App Setup and Hearing Level Adjustment
After installing the app, follow these steps to set up your personalized hearing profile:
- Ensure your earbuds are charged and paired with your smartphone.
- Open the installed app.
- Follow the on-screen instructions for initial setup, which may include agreeing to terms and conditions.
- The app will guide you through a hearing level measurement process. This typically involves listening to various tones and indicating when you can hear them.
- Based on your responses, the app will suggest personalized hearing settings. You can then fine-tune these settings to your preference.
Important:
It is essential to complete the hearing level measurement and adjustment in the app to achieve the best possible hearing amplification tailored to your individual needs.
8. Maintenance
Regular cleaning ensures optimal performance and hygiene.
- Earbuds: Use the provided cleaning brush to gently remove any earwax or debris from the eartips and sound output ports. Wipe the earbuds with a soft, dry cloth.
- Eartips: Eartips can be removed and gently cleaned with mild soap and water. Ensure they are completely dry before reattaching them to the earbuds.
- Charging Case: Wipe the charging case with a soft, dry cloth. Do not use liquids or abrasive cleaners.
Caution:
Do not use alcohol, benzene, or other chemical solvents to clean the device, as this may cause damage.
9. Troubleshooting
If you encounter any issues, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound / Low volume | Low battery; Incorrect volume setting; Eartips blocked. | Charge the device; Adjust volume using the multi-function key or app; Clean eartips and sound output ports. |
| Howling sound | Improper eartip size/fit; Earbuds not inserted correctly. | Try different eartip sizes for a snug fit; Re-insert earbuds securely. |
| Cannot pair with smartphone | Bluetooth is off; Device is out of range; Earbuds not in pairing mode. | Ensure Bluetooth is on; Bring devices closer; Place earbuds in case, then remove to enter pairing mode. |
| Intermittent connection | Interference; Distance from smartphone. | Avoid strong electromagnetic fields; Keep smartphone close to the earbuds. |
If the problem persists, please contact customer support.
10. Specifications
| Feature | Specification |
|---|---|
| Model Name | CHE-S-001 |
| Earbud Dimensions (approx.) | 25 × 15 × 20 mm |
| Earbud Weight (approx.) | 4 g (per earbud) |
| Bluetooth Version | 5.3 |
| Waterproof Rating | IPX4 |
| Supported Profiles | A2DP, AVRCP, HSP, HFP |
| Supported Codecs | SBC, AAC |
| Communication Distance (approx.) | 10 m (without obstacles) |
| Continuous Use Time (Amplification/Music) | Approx. 13 hours / Approx. 8 hours (varies by usage conditions) |
| Acoustic Gain | 33dB |
| Earbud Input | 5V/50mA |
| Earbud Battery Capacity | 60mAh/3.7V |
| Earbud Charging Time (approx.) | 2 hours |
| Charging Case Dimensions (approx.) | 60 × 33 × 31 mm |
| Charging Case Weight (approx.) | 26 g |
| Charging Case Input | 5V/1A USB-C |
| Charging Case Battery Capacity | 350mAh/3.7V |
| Earbud Recharges from Case (approx.) | 2 times |
| Charging Case Charging Time (approx.) | 2 hours |
| Total Product Weight | 34 g |
| Battery Weight | 6.6 g |
| Technical Conformity Certification Number | 214-240293 |
11. Warranty and Support
Your cheero Wireless Hearing Amplifier CHE-S-001 comes with a 1-year warranty from the date of purchase.
In case of initial defects or malfunctions, please contact our customer support. Our Japanese staff will assist you.
Contact Information:
- Please refer to the contact details provided in your warranty card or the official cheero website for customer support.
We are a Japanese company committed to providing products that make your daily life a little more convenient and enjoyable, with a focus on production quality and safety cultivated through our mechanical parts business, primarily manufacturing and selling mobile batteries and smartphone accessories.
