What's in the Box
- Hearing aids
- Ear Tips (S/M/L)
- Charging Case
- Manual
- Type C cable
Placement
To place the hearing aids in the charging case: Put the hearing aids into the charging case and close the cover.
To take out the hearing aids: Open the charging case and take out the hearing aids. The touch control area is indicated.
Power On & Connect
Auto On: Take the hearing aids out of the charging case.
Manual Power On: Long press the touch control area for 3 seconds.
Connection: Enable Bluetooth on your device. Choose "Cearvol Diamond X1" from the list of available devices to connect.
How to Wear
- Try different ear tip sizes (S/M/L) for a perfect fit and optimal audio performance.
- Insert the hearing aid into your ear, ensuring a comfortable and secure fit. The diagram shows the correct placement within the ear canal.
Change Your Ear Tips
You can choose between closed ear tips for a better hearing aid experience or open ear tips for comfort during extended wear. After switching ear tips, tap the corresponding eartips on the Cearvol app to ensure proper function.
Note: If you experience whistling with open ear tips, switch back to closed ear tips. If replacing open ear tips causes screeching, select appropriate eartips.
On/Off Hearing Aid Mode
On: Put on your hearing aids; the hearing aid function will turn on automatically.
Off: Take off your hearing aids; the hearing aid function will turn off automatically. The side of the hearing aid that is removed will not be able to change the volume level.
Auto Pause
When you take off your hearing aids, the playing music will pause automatically. To resume playback, tap the play button on your mobile phone.
Controls
Left (L) Earbud:
- Tap x1: Play/Pause music, Answer/End call.
- Tap x2: Next track, Reject call.
- Hold 1s: Voice assistants (Siri/Bixby/other).
- Tap x2 + Hold 1s: Activate voice assistant.
Right (R) Earbud:
- Tap x1: Play/Pause music, Answer/End call.
- Tap x2: Previous track, Reject call.
- Hold 1s: Voice assistants (Siri/Bixby/other).
- Tap x2 + Hold 1s: Activate voice assistant.
Gain Levels:
- Level 1: Single tap.
- Level 2: Double tap.
- Hold 1s: Switch between 4 gain levels.
- Level 3: Triple tap.
- Level 4: Quadruple tap.
Scene Modes: Double click to switch scene modes.
- Indoor Mode
- Conversation Mode
- Restaurant Mode
- Traffic Mode
Enable advanced controls by connecting your Cearvol Diamond X1 to the Cearvol Hearing App.
Dual Connect + Sync
The Cearvol Diamond X1 supports dual connection, allowing you to connect to two devices simultaneously. You can also use a single earbud in Mono Mode.
Multi-Point Connection
Connect to a maximum of 2 devices. Ensure Bluetooth is enabled on both devices and select "Cearvol Diamond X1" to connect.
Clear Pairing List
To clear the pairing history for all devices, tap the touch control area four times (Tap x4) on both earbuds.
Power Off
Auto Off: Place the hearing aids back into the charging case.
Manual Power Off: Long press the touch control area for 3 seconds to turn off the hearing aids.
LED Behaviors
Ready To Pair: Quick flash (blue/white).
BT Connected: Slow flash (blue).
Hearing Aids LED Behaviors:
- Battery < 30%: Quick flash (2s).
- Battery 30%~80%: Slow flash (2s).
- Battery 80%~100%: Light solid (1s).
L/R Hearing Aids Battery LED Behaviors:
- Battery < 10%: Quick flash.
- Battery < 30%: Slow flash (2s).
- Battery 30%~80%: Slow flash (2s).
- Battery 80%~100%: Light solid (2s).
Charging Case Battery LED Behaviors:
- Battery < 10%: Quick flash.
- Battery < 30%: Light solid (5s).
- Battery 30%~80%: Light solid (5s).
- Battery 80%~100%: Light solid (5s).
Charging
Charging Case: Charge the case for 2 hours from empty. The LED indicators show the battery level.
Hearing Aids: A 10-minute charge provides 3 hours of use. A full charge takes 1 hour from empty.
Do More With The App
App Download: Download the Cearvol app from the App Store or Google Play.
App Connection: Follow the on-screen instructions to connect your hearing aids via Bluetooth.
Main Interface: Control volume, select eartips, and synchronize settings.
Online Hearing Test: Conduct an audiometry test to customize hearing aid settings for your specific hearing loss. You can also input your existing audiogram.
Product Specification
- Model: Diamond X1
- Driver size: 5.8 mm/ 0.23" Dynamic Driver
- Power supply: 5V/1A
- Input: 5V/1A
- Output: 5V/150mA*2
- Earphone: 2.86g per pc / 0.006 lbs per pc
- Charging case: 36.5g/0.08 lbs
- Earbud battery type: Lithium-ion Battery (70mAh/3.85V)
- Charging case battery type: Lithium-ion battery (500mAh/3.7V)
- Earphone charging time: 1 hrs from empty
- Charging Case charging time: 2 hrs from empty
- HA playtime with BT on: 12hrs
- Total HA playtime with BT on: 36hrs
- Phonecall playtime with BT on: 5hrs
- Fast charging: Charge 10mins for 3Hour
- Transport and storage: -10~55℃, 30%~75%RH, 86KPa~106KPa
- Frequency response: 20-20KHz
- HA Frequency response: 200Hz~6kHz
- Impedance: 32Ω
- Sensitivity: 109 dB SPL@1 kHz
- Maximum SPL: 96 dB
- Microphone sensitivity: -18 dBV/Pa@1 kHz
- THD: <3%
- Waterproof: IPX5
- BT version: 5.3
- BT profile version: HFP 1.8, A2DP1.4, AVRCP1.6.2
- BT transmitter frequency range: 2.4 GHz - 2.4835 GHz
- BT transmitter power: 10 dBm
- BT transmitter modulation: GFSK, π/4QPSK, 8DPSK, BLE 2M
- Latency: ≤15ms
- Operation temperature: 0-40°
- Humidity: 10%~95%rh
- Atmospheric Pressure: 86kPa~106kPa
Product FAQs
The Hearing Aid is Not Turning On in Both Ears
- Check if the charging case battery is depleted. Charge if necessary.
- Ensure clean charging contacts. Place aids in the case and check for charging indicator lights.
The Hearing Aid is Not Turning On in One Ear
- Ensure clean charging contacts. Place aid in the case and check for charging indicator lights.
The Hearing Aids Do Not Automatically Pair to Each Other
- Confirm both hearing aids are turned on.
- Place aids in the charging case and close for 5s to enter TWS pairing mode for automatic pairing.
I Can't Find the Pairing Name on the Mobile
- Ensure Bluetooth is enabled on your mobile phone.
- Your hearing aids may be connected to other devices. Tap both touch control areas five times to clear pairing records. Reconnect to your mobile.
There is No Automatic Reconnection
- Turn off Bluetooth on recently used devices. Try reconnecting to your mobile.
- Tap both touch control areas five times to clear pairing records. Reconnect to your mobile.
The Hearing Aids Do Not Turn Off When Placed in the Charging Case / The Hearing Aids Make a Screeching Noise When Placed in the Charging Case
- Battery of the charging case may be depleted.
- Check for dirty charging contacts.
The Sound is Too Low / The Volume Gain is Low
- Adjust gain level and EQ settings in the Cearvol app.
- Your hearing loss level may exceed the device's support range. Use the hearing test in the app.
- The hearing curve may not match the device's default. Enter your audiogram in the app.
The Hearing Aids Are Uncomfortable to Wear
- Try different eartip sizes for a more comfortable fit.
- Adjust hearing aids to a comfortable position as instructed.
The Noise Reduction is Not Good Enough
- The device may be set to Indoor Mode. Switch to modes like Restaurant Mode or Traffic Mode for stronger noise reduction.
- Connect to the Cearvol hearing app to adjust noise reduction levels.
The Hearing Aids Have a Screeching Issue
- Ensure eartips fit properly. Consider changing to different size eartips.
- Reduce volume and gain level if sound amplification is too high, causing feedback.
Safety Instruction and Warranty Card
Introduction
What is hearing loss? Hearing loss is defined as a puretone average of hearing thresholds greater than 25 dB hearing level (HL) in both ears, as per World Health Organization criteria.
What are hearing aids? OTC Intelligent Hearing Aids are wearable sound-amplifying devices that use air-conduction to compensate for impaired hearing.
Intended Use
Medical purpose: OTC Intelligent Hearing Aids are intended to amplify sound for individuals 18 years of age or older with perceived mild to moderate hearing impairment. They are for direct-to-consumer sale and use without a hearing care professional.
Intended patients and environment: Suitable for indoor and outdoor use by individuals 18 years or older with mild to moderate hearing impairment.
Side effects
- Skin sensitivity to silicon material may cause ear canal pruritus.
- Initial use may cause temporary maladjustment, such as slight ear canal pain.
Important Safety Instructions
Read all information in the manual and included literature before use.
Contraindication
- Not suitable for users with chronic suppurative otitis media or congenital ear atresia.
- OTC Intelligent Hearing Aids are for compensating hearing impairment only, not for therapeutic value.
- Not for users under 18 years old.
Warnings
- Keep small parts away from children.
- Avoid dropping, immersing in liquid, strong electromagnetic fields, or excessive heat.
- If parts remain in the ear, seek medical attention.
- Dispose of waste and hearing aids according to battery recycling management. Do not incinerate. Do not disassemble. Contact the manufacturer for repairs.
- Do not use with high frequency, microwave, or short-wave equipment.
- Do not use at high volume for extended periods to avoid ear injury. Stop use if uncomfortable.
- Ensure accessory equipment is certified according to IEC 60601/62368 standards.
- Set volume to minimum when not wearing.
- Keep products clean and avoid blocking earplugs and sound collecting holes.
- Avoid shocking or dropping the product. Do not use in humid or high-temperature environments.
- Do not use in potentially explosive or dangerous environments.
- Keep away from children to prevent injury or damage.
- Do not use in oxygen-rich environments or for extended periods.
- Do not set volume levels too high, as prolonged listening at high volumes can cause hearing damage.
- If noise is too loud, stop use and contact the distributor.
- The device is for one person only. Do not lend to others.
- Monitor for unusual skin reactions. Discontinue use and consult a doctor if any occur.
- Do not touch the hearing aids to magnetic objects.
- Inform your doctor you are wearing hearing aids during diagnosis or treatment. Remove if necessary.
- Do not pry the inside of the hearing aids.
- Use only specified power adapters and USB cables.
- Unplug the charging base once fully charged to avoid overcharging.
- Do not place in hot or humid locations, near heating appliances, in direct sunlight, or in bathrooms.
Maintenance and Clean
- Daily maintenance: Clean hearing aids daily with a soft cloth or tissue. Use a drying kit if exposed to humidity or perspiration.
- Care and maintenance: Keep in a dry place away from children and sunlight. Avoid heat sources and high humidity. Operate controls with care. If the device falls into water, wipe dry and have it inspected. Do not pick the microphone with sharp objects. Do not disassemble or attempt repairs yourself. Remove ear wax with a stick and brush. Annual inspection and calibration by the manufacturer are recommended.
- Clean: Keep hearing aids clean. Use a cleaning brush or soft cloth for debris. Clean and disinfect earbuds with 75% alcohol twice a week. Avoid getting alcohol into earbuds. Never use water, solvents, cleaning fluids, or oil. Keep charging contacts clean and dry.
Federal Communication Commission Interference Statement
This equipment complies with Part 15 of the FCC Rules. Operation is subject to two conditions: no harmful interference, and acceptance of any interference received. Changes or modifications not expressly approved could void the user's authority to operate the equipment.
Electromagnetic Compatibility and Risk Warning
The Cearvol Diamond X1 complies with IEC 60601-1-2 and IEC 60601-2-66 standards. Maintain a safe distance from portable and mobile RF communication equipment.
Table 1: Medical Hearing-Aid Buds Electromagnetic Statement
| Launch Experiment | Compliance | Electromagnetic Environment - Guide |
|---|---|---|
| Radio Frequency Emission CISPR 11 | Group 1 | Medical Hearing-Aid Buds uses RF energy internally. RF emission is low, minimizing interference with electronic devices. |
| Radio Frequency Emission CISPR 11 | Class B | Suitable for all non-domestic environments and not directly connected to public low-voltage power supply networks. |
| Harmonic Current Emission IEC 61000-3-2 | Inapplicability | Inapplicability |
| Voltage Fluctuations & Flicker IEC 61000-3-3 | Inapplicability | Inapplicability |
Table 2: Electromagnetic Immunity
| Immunity Test | IEC Test Level Guide | Coincidence Level | Electromagnetic Environment Guide |
|---|---|---|---|
| Electrostatic Discharge IEC 61000-4-2 | ±8kV contact, ±2kV, ±4kV, ±8kV, ±15kV air | ±2kV, ±4kV, ±6kV, ±8kV contact | The ground shall be wood, concrete or ceramic tile. If the ground is covered with synthetic material, the relative humidity should be at least 30%. |
| Electrical Fast Transient and Burst IEC 61000-4-4 | ±2kV | Inapplicability | Not applicable |
| Surges IEC 61000-4-5 | Line to line: ±0.5kV, ±1kV; Line to ground: ±0.5kV, ±1kV, ±2kV | Inapplicability | Not applicable |
| Voltage Dips and Interruption IEC 61000-4-11 | 0% UT; 0.5 cycle at 0°, 45°, 90°, 135°, 180°, 225°, 270° and 315°; 0% UT; 1 cycle and 70% UT; 25 cycles Single phase: at 0°; 0% UT; 250 cycle | Inapplicability | Not applicable |
Table 3: Electromagnetic Immunity
| Immunity Test | IEC 60601 Test Level Guide | Coincidence Level | Electromagnetic Environment - Guide |
|---|---|---|---|
| Conducted disturbances, induced by RF fields IEC 61000-4-6 | 3V, 0.15MHz ~ 80MHz; 6V, in ISM and amateur radio bands between 0.15MHz and 80MHz; 80% AM at 1kHz | Inapplicability | Portable and mobile radio communication equipment should not be closer than recommended isolation distance. Formula for distance: d=1.2/√P (150kHz~80MHz), d=1.2√P (80kHz~800MHz), d=2.3√P (800MHz~2.7GHz). P is the maximum output rated power of the transmitter. Interference may occur near the symbol indicating RF fields. |
| Radiated RF Electromagnetic fields immunity IEC 61000-4-3 | 10V/m 80MHz~2.7GHz 80% AM at 1kHz; 10V/m, 0.65-0.96GHz and 1.4-2.7GHz | 10V/m, 80MHz~2.7GHz 80% AM at 1kHz RF Band; 10V/m, 0.65-0.96GHz and 1.4-2.7GHz | The field strength of a fixed RF transmitter should be lower than the coincidence level. Interference may occur near the device marking the symbol. |
Table 4: Recommended separation distance between portable and mobile radio-frequency communication equipment and Medical Hearing-Aid Buds.
| Transmitter maximum rated output power W | Isolation distance corresponding to different frequency of transmitter /m | ||
|---|---|---|---|
| 150 KHz~80 MHz d=1.2/√P | 80 MHz~800 MHz d=1.2√P | 800 MHz~2.7 GHz d=2.3√P | |
| 0.01 | 0.12 | 0.12 | 0.23 |
| 0.1 | 0.38 | 0.38 | 0.73 |
| 1 | 1.2 | 1.2 | 2.3 |
| 10 | 3.8 | 3.8 | 7.3 |
| 100 | 12 | 12 | 23 |
Note: For transmitters with maximum ratings not listed above, the recommended separation distance in meters (m) can be determined by the corresponding transmitter frequency bar formula, where P is the maximum rated output power of the transmitter provided by the transmitter Cannice, in Watt (W) as a unit.
Normalized Symbols
- Follow operating instructions ?
- B type applied part ?
- Disposal in accordance with Directive 2002/96/EC (WEEE) ♻️
- Manufacturer: Shenzhen Cannice Technology Co.,Ltd.
- Date of manufacture ?
- Serial number SN
- Warning/ Danger: Improper use might cause serious injuries. ⚠️
- LOT: Indicates the manufacturer's batch code.
- IPX5: Grade of against ingress of solid foreign objects -Not dust proof; splash proof type.
- CLASS II equipment ?
Manufacturer Information
Manufacturer: Shenzhen Cannice Technology Co., Ltd.
Address: 20/F, Tower A, Building 7, Baoneng Science and Technology Park, Qingxiang Road #1, Longhua New District, Shenzhen, China, 518129
Tel: +86-755-61880577
Website: http://www.cannice.hk
Producer Information
Producer: Guangxi Cannice Precision Technology Com.Ltd.
Address: Block C, South of Longtuan West Road Zhongshan Town, Zhongshan County Hezhou Guangxi 542600 China
Help
Support
For questions or issues, consult the Solutions Guide or contact Cearvol support at 1 (959)-206-0088. You can also access troubleshooting through the Cearvol app or visit www.cearvol.com.
Guarantee
Happiness guaranteed. Return within 30 days for a refund. Warranty Time: 3 Years. Contact Cearvol at 1 (959)-206-0088 for assistance.
Contact Information
- Phone: 1(959)-206-0088
- Website: www.cearvol.com
- Email: support@cearvol.com
- Call Hours: MON-FRI 9AM-6PM PST
