SENNHEISER ACCENTUM OPEN OTW1 R (01) PDF MANUAL

General Safety:

Read this 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.

Preventing Damage to Health and Accidents:

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).

Preventing Damage to the Product and Malfunctions:

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.

Safety Instructions for Lithium Rechargeable Batteries:

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.

Only use rechargeable batteries and chargers recommended by Sonova Consumer Hearing.

Do not leave the product/rechargeable batteries unattended while charging.

Only charge the product/rechargeable batteries at ambient temperatures between 5°C and 35°C/41°F and 95°F and do not charge them near easily flammable objects.

Do not charge the product/rechargeable batteries in a damp or humid environment. Make sure that the charging socket is free from moisture and contamination.

Do not heat the product/rechargeable batteries above 70°C/158°F. Avoid exposure to sunlight and do not throw the product/rechargeable batteries into fire.

Switch rechargeable battery-powered products off after use.

When not using the product/rechargeable batteries for extended periods of time, charge them regularly (about every 3 months).

This product contains coin rechargeable batteries. If you think the product/a coin rechargeable battery has been swallowed or is lodged in the body, seek medical assistance immediately.

Avoid prolonged skin contact with the product, rechargeable battery, charger or charging cable when connected to a power source. These components can heat up during charging and cause skin irritation.

The earbuds feature an IPX4 ingress protection rating which means they are protected from the ingress of water (protection class according to International Protection Marking (IP code), IEC standard 60529, tested under laboratory conditions).

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 if immersed into liquid.

Always keep the charging case dry.

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

Only use high-quality USB charging cables with USB-IF certification.

These headphones have been designed as an accessory for Bluetooth compliant devices. They are intended for wireless audio communication such as music playback and phone calls via Bluetooth wireless technology.

It is considered improper use when the product is used for any application not named in the corresponding product documentation.

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

Charging Case (Model: OTW1 C)

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

Earbuds (Model: OTW1 R and OTW1 L)

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

When a USB cable is connected for charging:

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

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 rechargeable batteries of the earbuds and the charging case are in sleep mode. They need to be woken up by connecting them to a USB power source once.

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

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

3. Connect the cable to a USB power source and charge the rechargeable batteries for at least 15 seconds.

The earbuds and the charging case are woken up and the rechargeable batteries are being charged. The earbuds are now ready for use. We recommend charging the earbuds and the charging case for a complete charging cycle without interruption before using for the first time.

The correct fit of the earbuds in your ears gives you the best sound quality, the best voice quality for phone calls and the best wearing comfort.

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

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

3. 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.

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 earbuds have not yet been paired with any Bluetooth device (the pairing list is empty), pairing mode remains permanently activated. As soon as the earbuds are in pairing mode, you will hear a short, repetitive melody.

To connect the earbuds to your smartphone via Bluetooth, follow the pairing instructions. The earbuds can save the connection profiles of up to eight Bluetooth devices. They can have two active Bluetooth connections at the same time, but audio playback is only possible from one device at a time.

A complete charging cycle of the charging case and the earbuds takes about 1 hour. The quick charge function gives you approx. 1.5 hours of playback time after 10 minutes of charging.

1. Open the charging case and 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.

2. Close the lid of the charging case and make sure that the charging socket is free from moisture and contamination. 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. Make sure that the USB power source is connected to the power supply system.

The rechargeable batteries of the earbuds and the charging case are being charged. The LED display of the charging case indicates the charge status.

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

2. Simultaneously touch and hold the right and the left touch control panel for 3 seconds until you hear a short, repetitive melody.

3. Activate Bluetooth on your Bluetooth device.

4. Via the menu of your Bluetooth device, start the search for new Bluetooth devices. From the list of found Bluetooth devices, select “ACCENTUM Open”. If necessary, enter the default pin code “0000”.

If pairing was successful, you hear an ascending sequence of two tones. If no connection is established within 2 minutes, pairing mode is terminated.

Via the menu of your Bluetooth device, disconnect the connection to the earbuds. The earbuds are disconnected from the Bluetooth device and you hear a descending sequence of two tones. The earbuds will then search for other paired devices. If no device is found, the earbuds switch to idle mode.

Switching On:

The earbuds switch on automatically as soon as the lid of the charging case is opened.

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

Insert the earbuds into your ears. If a paired Bluetooth device is within the transmission range, the earbuds automatically establish a connection.

Switching Off:

The earbuds do not have to be switched off explicitly.

Insert the earbuds into the charging case and close the lid to switch them off. As soon as the earbuds are inserted into the charging case and the lid is closed, they switch off and are being charged.

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. 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 there is an interruption of 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.

Making a call:

Dial the desired phone number on your smartphone. If your Bluetooth device does not automatically transfer the call to the earbuds, select “ACCENTUM Open” as the output device on your device.

Managing Calls:

When the earbuds are connected to your Bluetooth device, the battery charge status can often be displayed on the screen of your device (depending on the device and operating system).

To check the status using the charging case (when no USB cable is connected):

1. Open the lid of the charging case.

2. The LED display of the charging case indicates the battery charge status (see the LED indicator table for details). The LED display goes off after 5 seconds if you close the lid.

Store the earbuds in the charging case to prevent damage when not in use or during transport. The earbuds are automatically charged in the case, so you always have the full battery life available.

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 place.

3. Close the lid of the charging case.

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

ATTENTION: Liquids can damage the electronics of the product. Keep all liquids far away from the product 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 has occurred, proceed in the following order:

1. Insert the earbuds into the charging case and close the lid. Wait for at least 10 seconds (this performs a soft reset).

2. Reset the earbuds to the factory default settings.

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

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

Wireless calling and streaming are only possible in the Bluetooth transmission range of your smartphone (up to 10 meters with a free line of sight). If you leave this range, the sound quality deteriorates until the connection breaks completely, and you will hear a descending sequence of two tones.

If you immediately re-enter the Bluetooth transmission range, the connection is automatically re-established, and you hear an ascending sequence of two tones. If this is not the case, tap the touch control panel of one earbud one time.

If the function of the earbuds is disturbed, perform a reset. Individual settings such as the pairing settings are not deleted.

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 (reset).

If the function of the earbuds is disturbed and a reset does not improve, reset them to the factory default settings. This deletes all pairing settings.

1. Disconnect all existing connections between Bluetooth devices and your earbuds, e.g. by removing “ACCENTUM Open” from the list of Bluetooth devices found on your 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 not in the charging case for 12 seconds. You hear a sequence of three tones.

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

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

6. Remove the earbuds from the ear and place them as close together as possible. The earbuds connect to each other within 15 seconds. The earbuds are successfully reset to the factory settings and peer paired.

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 (if applicable) and packagings is used to promote the reuse and recycling and to prevent negative effects on your health and the environment, e.g. caused by potentially hazardous substances contained in these products.

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.