SENNHEISER ACCENTUM OPEN OTW1 L (01) PDF MANUAL

Please follow these safety guidelines for proper use:

Read the instruction manual carefully and completely before using the product.

Always include this instruction manual when passing the product on to third parties.

Do not use the product if it is obviously defective or makes loud, unusual (whistling or beeping) noise.

Only use the product in environments where Bluetooth® wireless transmission is permitted.

Protect your hearing from high volume levels. Permanent hearing damage may occur when earbuds are used at high volume levels for long periods of time. Sennheiser earbuds sound exceptionally good at low and medium volume levels.

Do not insert the earbuds too deep into your ears. Always remove the earbuds slowly and carefully from your ears.

The product generates stronger permanent magnetic fields that could cause interference with cardiac pacemakers, implanted defibrillators (ICDs) and other implants. Always maintain a distance of at least 3.94″/10cm between the product component containing the magnet (earbuds and charging case) and the cardiac pacemaker, implanted defibrillator, or other implant.

Keep the product, accessories and packaging parts out of reach of children and pets to prevent accidents. Swallowing and choking hazard.

Do not use the product in an environment that requires your special attention (e.g. in traffic).

Always keep the product dry and do not expose it to extreme temperatures (hairdryer, heater, extended exposure to sunlight, etc.) to avoid corrosion or deformation. The normal operating temperature is from 0°C to 40°C/32°F to 104°F.

Do not use if immersed into liquid.

Use only attachments/accessories/spare parts supplied or recommended by Sonova Consumer Hearing.

Clean the product only with a soft, dry cloth.

WARNING: If abused or misused, rechargeable batteries may leak. In extreme cases, they may even present a risk of explosion, heat and fire development, smoke and/or gas development, or damage to health and/or the environment.

The earbuds feature an IPX4 ingress protection rating, which means they are protected from the ingress of water (splash proof). The earbuds can be used in the rain, for example. However, they are not suitable for immersion in water or for wearing in the shower. In case of permanent moisture/wetness, the ingress protection can be reduced and the product can be damaged.

Do not charge wet earbuds. Completely dry wet earbuds with a dry cloth before charging them.

The charging case is not splash waterproof.

Do not use the case if immersed into liquid.

Always keep the charging case dry.

Make sure that the charging socket is free from moisture and contamination.

Dry the charging case completely with a dry cloth.

Allow the charging case to dry at room temperature for at least 24 hours before using and charging it again.

Do not continue to use the product if it is obviously defective.

Earbud R for right ear (model: OTW1 R) and earbud L for left ear (model: OTW1 L)

Charging case (model: OTW1 C) with built-in rechargeable battery for the earbuds

USB charging cable with USB C and USB A connector, approx. 0.4 m

Quick guide

Safety guide

Compliance sheet

1. LED display: Indicates the charging process/charge status.

2. Input for USB C connector: For charging the rechargeable batteries.

3. Bottom cradle

4. Charging compartment for the left earbud L

5. Top cradle

6. Charging contacts

7. Charging compartment for the right earbud R

8. Built-in rechargeable battery: For charging the earbuds on the go.

9. Touch control panel

10. Microphones for beamforming noise reduction

11. Acoustic rear ventilation

12. Acoustic front ventilation

13. Built-in rechargeable battery

14. Speaker

15. Left earbud L

16. Charging contacts

17. Right earbud R

The LED on the charging case indicates the battery and charging status. The display turns off 5 seconds after closing the lid if not connected to power.

When a USB cable is connected:

When no USB cable is connected (lid is opened):

If the LED display does not light up:

Clean the contacts on the earbuds and in the charging case.

Charge the rechargeable batteries of the charging case and the earbuds until the LED display lights up again (at least 30 minutes).

Upon delivery, the batteries are in sleep mode. You must wake them up by connecting to a power source.

1. Insert the earbuds into the charging case and close the lid.

2. Connect the USB C cable to the charging case.

3. Connect the cable to a USB power source and charge for at least 15 seconds. The earbuds and case are now woken up and charging.

We recommend charging the earbuds and the charging case for a complete charging cycle without interruption before using for the first time. A full charge takes about 1 hour. A quick charge of 10 minutes provides approx. 1.5 hours of playback time.

The correct fit provides the best sound quality, voice quality, and wearing comfort.

Assign the right earbud (R) to your right ear and the left earbud (L) to your left ear.

Insert the earbuds straight into your ears with the stem pointing downwards.

Twist the earbuds slightly in the ear so that the stem points towards your mouth until the earbuds sit comfortably and snugly in the ear.

The right or left earbud can be used alone. If you insert one earbud into the charging case during use, a short interruption of playback may occur in the other earbud.

1. Open the charging case and insert the left earbud into the left compartment and the right earbud into the right compartment. They are magnetically pulled into place.

2. Close the lid. Connect the USB C connector of the charging cable to the USB socket of the charging case.

3. Connect the USB A connector to a corresponding socket of a USB power source. The batteries will begin to charge. The LED display will indicate the charging status.

If no earbuds are inserted, only the charging case battery will be charged.

When you take the earbuds out of the charging case for the first time after initial charging, they automatically switch to Bluetooth pairing mode. If the pairing list is empty, pairing mode remains permanently activated.

To manually start pairing:

1. Take both earbuds out of the charging case and insert them into your ears. The distance to the Bluetooth device should not exceed 1 m / 40 inches.

2. Simultaneously touch and hold the right and left touch control panels for 3 seconds until you hear a short, repetitive melody (“Pairing”).

3. Activate Bluetooth on your Bluetooth device.

4. Via the menu of your Bluetooth device, start the search for new Bluetooth devices.

5. From the list of found devices, select “ACCENTUM Open”. If necessary, enter the default pin code “0000”.

If pairing is successful, you will hear an ascending sequence of two tones (“Pairing successful” / “Connected”).

If no connection is established within 2 minutes, pairing mode is terminated. If necessary, repeat the steps.

The earbuds can save connection profiles for up to eight Bluetooth devices. You can have two active connections at the same time, but audio playback is only possible from one device at a time.

Switching On:

The earbuds switch on automatically when you open the lid of the charging case.

Open the lid of the charging case and take out both earbuds.

Insert the earbuds into your ears. If a paired device is in range, they will connect automatically.

Switching Off:

The earbuds do not need to be switched off explicitly.

Insert the earbuds into the charging case and close the lid to switch them off. The earbuds will also begin charging.

To reduce the volume: Touch and hold the touch control panel of the left earbud until the volume decreases.

To increase the volume: Touch and hold the touch control panel of the right earbud until the volume is increased.

When the minimum or maximum volume is reached, you will hear a sequence of two high tones (“Volume min” or “Volume max”). You can also adjust the volume using the connected Bluetooth device.

The earbuds automatically detect whether you are wearing them. Music playback pauses when you remove an earbud from the ear and continues when you insert it again. If the interruption is more than 3 minutes, playback will not start automatically.

To disable or enable the Smart Pause function, tap the touch control panel of the left earbud 3x.

If your device does not automatically transfer the call, select “ACCENTUM Open” as the audio output on your device. The following controls can be used on either the right or left earbud.

ATTENTION: Moisture and dirt can damage the electronics of the charging case and the earbuds. Do not place the earbuds in the charging case when they are wet or dirty.

To store the earbuds safely and keep them charged:

1. Open the charging case by overcoming a slight magnetic resistance.

2. Insert the left earbud into the left charging compartment and the right earbud into the right charging compartment. The earbuds are magnetically pulled into the charging compartments.

3. Close the lid of the charging case.

ATTENTION: Liquids can damage the electronics of the product. Keep all liquids far away and do not use any solvents or cleansing agents.

Only clean the charging case with a soft, dry cloth.

Clean the earbuds with a slightly damp cloth.

Clean the charging contacts on the earbuds and in the charging case from time to time, e.g. with a cotton swab.

To remove any dirt such as dust accumulation or lint from the USB socket of the charging case, carefully swipe a fine object (e.g. toothpick or interdental brush) through the opening of the socket.

If the earbuds have gotten wet, dry them with a dry cloth. If necessary, let the earbuds dry at room temperature for approx. 12 hours.

If a problem occurs, proceed in the following order:

1. Perform a soft reset: Insert the earbuds into the charging case, close the lid, and wait for at least 10 seconds.

2. Reset to factory defaults: If a reset doesn’t help, reset the earbuds to their factory settings, which deletes all pairing settings.

3. Check the list of frequently asked questions for a solution.

If the problem persists, contact your Sonova Consumer Hearing partner.

Wireless streaming is only possible within the Bluetooth range of your device (typically up to 10 meters with a free line of sight).

If you leave the transmission range, the sound quality will deteriorate until the connection breaks completely, and you will hear a descending sequence of two tones. If you immediately re-enter the Bluetooth range, the connection is automatically re-established, and you will hear an ascending sequence of two tones. If this does not happen, tap the touch control panel of one earbud one time to reconnect.

If the function of the earbuds is disturbed, perform a reset. This will restart the earbuds but will not delete settings like pairing information.

1. Insert the earbuds into the charging case.

2. Close the lid of the charging case and wait at least 10 seconds.

3. Open the lid again. The earbuds will restart.

If a reset does not fix an issue, you can reset the earbuds to their factory default settings. This will delete all pairing settings.

1. Disconnect all existing connections to the earbuds by removing “ACCENTUM Open” from the Bluetooth device list on your phone/device.

2. Take one earbud out of the charging case, insert it in your ear, and close the lid of the charging case. The second earbud remains in the charging case.

3. Tap and hold the touch control panel of the earbud that is in your ear for 12 seconds. You will hear a sequence of three tones.

4. Take the second earbud out of the charging case and insert it in your other ear.

5. Tap and hold the touch control panel of this second earbud for 12 seconds. You will hear a sequence of three tones.

6. Remove the earbuds from your ears and place them as close together as possible. They will connect to each other within 15 seconds. The earbuds are now successfully reset and peer paired.

7. Pair your earbuds with your Bluetooth device again.

The symbol of the crossed-out wheeled bin on the product, the battery/rechargeable battery (if applicable) and/or the packaging indicates that these products must not be disposed of with normal household waste, but must be disposed of separately at the end of their operational lifetime. For packaging disposal, observe the legal regulations on waste segregation applicable in your country.

The separate collection of waste electrical and electronic equipment, batteries/rechargeable batteries and packagings is used to promote the reuse and recycling and to prevent negative effects on your health and the environment. Recycle electrical and electronic equipment and batteries/rechargeable batteries at the end of their operational lifetime in order to make contained recyclable materials usable and to avoid littering the environment.

If batteries/rechargeable batteries can be removed without damaging them, you are obliged to dispose of them separately. Handle lithium-containing batteries/rechargeable batteries with special care, as they pose particular risks, such as the risk of fire and/or the risk of ingestion in the case of coin batteries.

Further information on the recycling of these products can be obtained from your municipal administration or municipal collection points.