The Sennheiser All-Day Clear OTC Hearing Aids, model ADC1, are designed for individuals aged 18 years or older with perceived mild to moderate hearing loss. These hearing aids amplify and transmit sound to the ears to compensate for hearing loss. They are intended for personal use only and should not be used by others, as this could damage hearing.

Important Warnings and Cautions:

Age Restriction: Not for use by individuals younger than 18. Those under 18 with hearing loss should consult an ear-nose-throat (ENT) doctor for medical testing and management.
Medical Consultation: Consult an ENT doctor if you experience any of the following:
- Ear birth defect or unusual shape.
- Ear injury or deformation from an accident.
- Blood, pus, or fluid coming from your ear in the past 6 months.
- Painful or uncomfortable ear.
- Excessive ear wax or foreign object in the ear.
- Sudden dizziness or vertigo.
- Sudden hearing change in the past 6 months.
- Fluctuating hearing (worsens then improves).
- Worse hearing in one ear.
- Ringing or buzzing in only one ear.
Insertion Pain: The hearing aid should not cause pain during insertion. Remove immediately if pain or discomfort occurs and re-attempt insertion following instructions. If pain persists, contact the manufacturer or a hearing healthcare professional. Report adverse events to the FDA.
Not Hearing Protection: This device is not hearing protection. Remove it if you experience overly loud sounds. Use appropriate hearing protection in loud environments where earplugs would typically be used.
Sound Output: The sound output should not be uncomfortable or painful. Turn down the volume or remove the device if sound is uncomfortably loud. Consistent need to reduce volume may indicate a need for device adjustment.
Stuck Parts: If any part of the hearing aid (e.g., eartip) gets stuck in your ear and cannot be easily removed with fingers, seek medical help immediately. Do not use tweezers or cotton swabs, as this can push the part further into the ear, potentially causing serious injury.
Professional Consultation: If you continue to struggle with or are concerned about your hearing after trying the device, consult a hearing healthcare professional.
Hearing Aid Expectations: Hearing aids can benefit many with hearing loss but will not restore normal hearing. You may still have difficulty hearing over noise. They will not prevent or improve medical conditions causing hearing loss.
FDA Reporting: Report any injuries, malfunctions, or other adverse events (e.g., skin irritation, injury from device, stuck parts, sudden worsening of hearing loss) to the FDA as soon as possible via http://www.fda.gov/Safety/MedWatch or by calling 1-800-FDA-1088.
Lithium Batteries: The device uses lithium button/coin batteries, which are hazardous if swallowed. Keep out of reach of children, individuals with cognitive impairment, or pets. Seek immediate medical attention if ingestion is suspected. Rechargeable lithium-ion batteries are allowed on airplanes as carry-on luggage but not checked baggage.
Modifications: Changes or modifications not explicitly approved by the manufacturer are not permitted and may damage your ear or the hearing aids.
Normal Hearing: Hearing aids will not restore normal hearing or prevent/improve hearing impairment from organic conditions.
Charging Accessory: Only authorized personnel should open the charging accessory due to electrical hazard.
Explosive Areas: Do not use hearing aids or charging accessories in explosive areas (mines, industrial areas with explosion danger, oxygen-rich environments, or areas handling flammable anesthetics). The hearing aid is not ATEX certified.
Electronic Equipment Restrictions: Do not use hearing aids in areas where electronic equipment is prohibited.
Ear Pain/Irritation: If you experience pain in or behind your ear, inflammation, or accelerated ear wax accumulation, consult your hearing care professional or physician.
Stuck Eartip/Dome: In rare cases, an eartip/dome or cerumen stop may remain in the ear canal upon removal. If this occurs, consult a physician for safe removal.
Excess Ear Wax: Wearing these aids may cause excess ear wax buildup. Contact your licensed professional if this occurs.
Directional Microphone Mode: Hearing programs with directional microphone mode reduce background noises. Be aware that warning signals or noises from behind (e.g., cars) may be partially or entirely suppressed.
Small Parts: The hearing aid is small and contains small parts. Keep out of reach of children and individuals with cognitive impairment to prevent choking.
Drying Capsule: If a drying capsule is swallowed, consult a physician or hospital immediately.
Wire Connection: Do not make a wire connection from your hearing aids to any external audio sources like radio, as this could cause injuries (electric shock).
Charging Case: Do not cover the whole charging case while charging.
Medical Devices: This device is only applicable for persons with active implantable medical devices (e.g., pacemakers, defibrillators).
Wireless Accessories: Keep wireless hearing aids, charging case, and accessories with magnets (e.g., cleaning brush) at least 15 cm (6 inches) away from the active implant.
Interference: If you experience any interference, do not use the hearing aids or charging case and contact the manufacturer.
Stacking Equipment: Use of this equipment adjacent to or stacked with other equipment should be avoided as it could result in improper operation.
Power Supply: Only use the charging case and power supply provided by the manufacturer. Otherwise, the device(s) may be damaged.
Accessories: Use of accessories, transducers, and cables other than those specified or provided by the manufacturer could result in increased electromagnetic emissions or decreased electromagnetic immunity.
Flight Mode: Hearing aids operate in the 2.4 GHz-2.48 GHz range. Check flight operator requirements for devices to be switched into flight mode.
RF Communications: Portable RF communications equipment should be used no closer than 30 cm (12 inches) to any part of the hearing aids.
Electromagnetic Interference: The device has not been tested for known sources of electromagnetic interference (e.g., wireless power transfer systems, 5G cellular signals, security systems, metal detectors, MRI, CT, diathermy, RFID) and should not be used in conjunction with or in proximity to such technology.
Earpiece/Receiver: Hearing aids should only be used with the designated earpiece and receiver.
USB Port: The USB port of the charging case is for the described purpose only.
Domes/Eartips/Wax Protection: Hearing aids should not be fitted with domes/eartips/wax protection systems when used by people with perforated eardrums, inflamed ear canals, or otherwise exposed middle ear cavities.
Charger: For charger, use only IEC 60950-1, IEC 62368-1, or IEC 60601-1 certified equipment with an output rating of 5 VDC, Min. 500 mA.
Hearing Deterioration: The majority of hearing aid users are not expected to experience hearing deterioration with regular use. A small group may be at risk after prolonged use.
Microphone Inputs: Never wash microphone inputs, as this can damage their acoustic features.
Cables/Cords: Cables and cords wrapped around the neck may cause strangulation. Do not leave the device unattended with children, individuals with cognitive impairment, or pets.

Function Description:

The Sennheiser All-Day Clear OTC Hearing Aids are self-fitting devices designed to provide perceived hearing improvement for adults with mild to moderate hearing loss. They amplify and transmit sound to the ears, compensating for hearing loss. The accompanying All-Day Clear App (for iOS 14+ or Android 8.0+ smartphones) allows users to set up and adjust the hearing aids, including volume control and sound modes. The app also enables hands-free calls and wireless streaming of music, podcasts, and audiobooks.

Important Technical Specifications:

Maximum Output Limit Value (OSPL90): 110 dB SPL (ANSI S3.22 2014)
Full On Gain Value @50 dBSPL input: 34 dB (ANSI S3.22 2014)
Output Distortion (100dB SPL Out): 1.0% (ANSI/CTA 2051 2017)
Output Distortion (70dB SPL Out): 4.0% (ANSI/CTA 2051 2017)
Input Distortion @ 100dB SPL In: 1.0% (ANSI/CTA 2051 2017)
Self Generated Noise value: 25 dB SPL (ANSI/CTA 2051 2017)
Latency Value: 6.5 ms (milliseconds) (ANSI/CTA 2051 2017)
Upper and Lower Cut-off Frequencies for Bandwidth: 100 Hz to 5000 Hz (ANSI/CTA 2051 2017)
Antenna type: Resonant loop antenna
Operation frequency: 2.4 GHz - 2.48 GHz
Modulation: GFSK, Pi/4 DQPSK, GMSK
Radiated power: < 2.5mW
Bluetooth® Range: ~1m
Bluetooth®: 4.2 Dual-Mode
Profiles supported: HFP (Hands-free profile), A2DP
Battery: Built-in, non-removable, rechargeable lithium-ion battery.
Battery Life: Up to 16 hours, including 2-3 hours of streaming, depending on individual usage.
IP Rating: IP68 (water and dust resistant; survived continuous immersion in 1 meter of fresh water for 60 minutes and 8 hours in a dust chamber as per IEC60529).

Usage Features:

App-Controlled Setup: Download the All-Day Clear App to set up your hearing aids. Create an account, accept the Data Collection Agreement, and select "set up new hearing aids."
Pairing Process: Plug the charging case into a power source, place hearing aids in the case (indicator lights blink), then remove them (indicator lights blink green for pairing). The app guides you through Bluetooth pairing for hands-free calls, wireless streaming, and app connectivity.
Sound Profile Setup: The app guides you to set up your sound profile in a quiet space, allowing you to rate volume, sound clarity, and balance.
Volume Control: Adjust hearing aid volume on both sides using a slider in the app. Tap the mute/unmute icon. Volume can be split to control each hearing aid separately.
Sound Mode Selection: Tap the arrow next to the current sound mode in the app to choose from available sound modes designed for different environments.
Advanced Fine Tuning: Access equalizer and wind noise reduction settings via the app. Balance adjustments can be made when streaming audio or connected to a TV Connector.
Push Button Functionality:
- ON/OFF: Push the lower part of the push button for 4 seconds until the indicator light turns green (ON). Push for 4 seconds until the indicator light turns red (OFF).
- Volume Control: Quickly push the upper part (> 2 seconds) to increase volume, or the lower part (> 2 seconds) to decrease volume.
- Sound Mode Change: Push the upper or lower part (< 2 seconds) to cycle through sound modes.
- Incoming Calls: Quickly press the upper or lower part (> 2 seconds) to answer. Press (< 2 seconds) to reject or end a call.
Charging Case: Charges the rechargeable hearing aids. Features an indicator light for power, USB micro-B port for charging cable, space for a drying capsule (sold separately), and charging slots with L/R indicators.
Power Supply: Includes a wall plug, USB-A port for charging cable, USB-A plug to connect to power supply, and USB micro-B plug to connect to charging case.
Eartips: Small, medium (pre-installed), and large eartips are provided for optimal fit.
TV Connector (Optional Accessory): Allows wireless connection to your TV. Adjust volume balance and environmental sounds via the push button or app.

Maintenance Features:

Charging:
- Charge for 3 hours before first use (comes with 30% charge).
- Charge hearing aids every night.
- Ensure hearing aids and charging case are dry and clean before charging.
- Indicator light blinks slowly during charging, solid green when fully charged.
- Charging stops automatically when batteries are full.
- Approximate charging times: 0-10% (30 min), 11-80% (60 min), 81-99% (90 min), 100% (3 hours).
- If charging case is removed from power source, hearing aids automatically turn on.
- Turn off hearing aids before inserting into a disconnected charging case for storage.
- Close the lid when charging in a humid environment.
- If unplugging the charging case with hearing aids inside, turn them off to prevent discharge.
- Charge regularly during long-term storage.
- Charge and use within +5°C to +40°C (41°F to 104°F).
Cleaning Hearing Aids:
- Use a soft, lint-free cloth daily.
- Use the supplied cleaning brush regularly to maintain sound quality.
- Do not rinse with water.
- Clean regularly to prevent ear wax buildup.
- Do not use sharp tools to dislodge ear wax.
Cleaning Charging Case:
- Use a soft, lint-free cloth daily to remove dust or dirt from charger slots.
- Ensure the charging case is disconnected from power before cleaning.
Cleaning Eartips:
- Gently clean with the supplied cleaning brush and/or a soft, lint-free cloth to remove debris or ear wax.
Replacing Wax Guard:
- Recommended every 3-4 months, depending on user and ear wax production.
- Remove eartip, wipe wax/debris.
- Turn the wax guard disk clockwise until a new filter is in opening #2 (you will feel/hear a click).
Replacing Eartips:
- Replace every 3-6 months or when stiff, brittle, or discolored.
- To remove: Grip earpiece, pinch eartip, peel back and off. Discard.
- To insert: Push fresh eartip onto earpiece until it secures with a slight click.
- Ensure eartip is securely fastened.
- Additional eartips can be purchased at www.sennheiser-hearing.com/alldayclear.
General Care:
- Remove hearing aids before using hair care products or cosmetics.
- Do not wear in bath/shower or immerse in water.
- Be diligent during exercise, as excessive sweat can impact hearing aids.
- Place in charging case for protection when removed.
- If wet, do not dry in oven/microwave. Visit a licensed professional.
- Avoid storing in high humidity (e.g., bathroom).
- For long-term storage, store in a box with a drying capsule (sold separately) in a well-ventilated location.
- Protect from excessive heat (hair dryer, vehicle glove box/dashboard).
- Do not twist or squeeze wires when placing in case.
- Completely dry hearing aids after use. Store in a safe, dry, clean place.
- Hearing aids, charging case, and charger inserts must be dry and clean before charging.
- Never use cleaning agents like household detergents or soap.
- Do not touch charging case contacts when powered.

Sennheiser ADC1 - Page 39

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