1. Introduktion
Thank you for choosing the Sennheiser CX 350BT Bluetooth Neckband Earphones. These earphones are designed to provide high-quality audio and convenient wireless connectivity. This manual provides essential information for setting up, operating, and maintaining your device.
2. Pakkens indhold
Sørg for at alle varer er til stede i pakken:
- Sennheiser CX 350BT Earphones
- USB-C ladekabel
- Ear Adapter Set (XS, S, M, L)
- Quick Guide & Sikkerhedsguide

Image: Sennheiser CX 350BT Earphones, showing the neckband design and earbuds.
3. Opsætning
3.1 Opladning af øretelefonerne
Before first use, fully charge the earphones. Connect the USB-C charging cable to the charging port on the neckband and to a USB power source. The LED indicator will show charging status. A full charge provides up to 10 hours of battery life.

Billede: Nærbillede view of the CX 350BT neckband, highlighting the charging port and battery unit.
3.2 Parring med en Bluetooth-enhed
- Sørg for, at høretelefonerne er slukkede.
- Press and hold the multi-function button until the LED flashes blue and red, indicating pairing mode.
- Aktiver Bluetooth på din enhed (smartphone, tablet osv.) og søg efter tilgængelige enheder.
- Select "Sennheiser CX 350BT" from the list.
- Once connected, the LED will flash blue.
The CX 350BT supports Bluetooth 5.0 and can maintain a stable connection up to 30 meters. It also supports multi-connection, allowing you to connect to two devices simultaneously.

Image: Graphic representing transparent connectivity, indicating easy Bluetooth pairing.
3.3 Tilpasning af øretelefonerne
Select the appropriate ear adapter size for a secure and comfortable fit. A good seal is crucial for optimal sound quality and bass response. Gently insert the earbuds into your ear canals and adjust the neckband for comfort.

Image: A person wearing the CX 350BT earphones, demonstrating proper fit and usage.
3.4 Sennheiser Smart Control App
Download the Sennheiser Smart Control app for additional features, including equalizer adjustments and firmware updates. The app allows you to customize your audio experience.

Image: A smartphone displaying the Sennheiser Smart Control app, illustrating customization options.
4. Betjening af øretelefonerne
4.1 Tænd/sluk
- Tænd: Tryk og hold multifunktionsknappen nede i 2 sekunder. LED-lampen blinker blåt.
- Sluk: Tryk og hold multifunktionsknappen nede i 4 sekunder. LED-lampen blinker rødt og slukker derefter.
4.2 Brug af 3-knaps fjernbetjeningen
The earphones feature an intuitive 3-button remote control located on the neckband for easy management of music and calls.

Billede: Detaljeret view of the 3-button remote control on the earphone cable.
- Afspil/pause: Tryk én gang på midterknappen.
- Næste nummer: Tryk én gang på '+'-knappen.
- Forrige nummer: Tryk én gang på '-'-knappen.
- Lydstyrke op: Tryk på '+'-knappen og hold den nede.
- Skrue ned for lyden: Tryk på '-'-knappen og hold den nede.
- Besvar/afslut opkald: Tryk én gang på midterknappen.
- Afvis opkald: Tryk og hold midterknappen nede i 2 sekunder.
- Aktiver stemmeassistent: Press the dedicated voice assistant button (usually located above the '+' button).
5. Vedligeholdelse
5.1 Rengøring
Regularly clean the earphones to ensure optimal performance and hygiene.
- Use a soft, dry cloth to wipe the earbuds and neckband.
- Remove ear adapters and clean them with mild soap and water. Ensure they are completely dry before reattaching.
- Brug ikke skrappe rengøringsmidler eller opløsningsmidler.
5.2 Opbevaring
When not in use, store the earphones in a clean, dry place away from extreme temperatures and direct sunlight.
5.3 Vandtæthed
The Sennheiser CX 350BT earphones are water-resistant. This means they can withstand splashes and light rain, but they are not designed for submersion in water. Avoid exposing them to heavy rain or showering with them.
6. Fejlfinding
Hvis du støder på problemer med dine øretelefoner, kan du bruge følgende almindelige løsninger:
- Ingen lyd: Ensure the earphones are powered on, paired correctly, and the volume is not muted on either the earphones or the connected device.
- Dårlig lydkvalitet: Check the ear adapter fit for a proper seal. Ensure there are no obstructions between the earphones and the connected device. Try adjusting the equalizer settings in the Sennheiser Smart Control app.
- Forbindelsesproblemer: Ensure Bluetooth is enabled on your device and the earphones are within range (up to 30 meters). Try unpairing and re-pairing the earphones.
- Høretelefoner oplader ikke: Verify the charging cable is securely connected to both the earphones and the power source. Ensure the power source is active.
- Mikrofonproblemer: Ensure the microphone is not obstructed and is positioned correctly. If using for calls, ensure the earphones are selected as the audio input device on your phone.
For further assistance, consult the Sennheiser Smart Control app for firmware updates or visit the official Sennheiser support webwebsted.
7. Specifikationer
| Mærke | Sennheiser |
| Modelnavn | CX 350BT |
| Farve | Hvid |
| Øreplacering | In-ear |
| Formfaktor | In-ear |
| Støjkontrol | Akustisk isolering |
| Forbindelsesteknologi | Trådløs (Bluetooth) |
| Trådløs kommunikationsteknologi | Bluetooth |
| Bluetooth version | 5.0 |
| Bluetooth rækkevidde | 30 meter |
| Batterilevetid (gennemsnitlig) | 10 timer |
| Opladningstid | 10 Hours (Note: This likely refers to total usage time, not charging time. Please refer to product packaging for accurate charging time.) |
| Audio driver type | Dynamisk Driver |
| Frekvensområde | 20 Hz - 20,000 Hz |
| Materiale | Silicone (ear adapters) |
| Vandmodstandsniveau | Vandtæt |
| Varens vægt | 13 gram |
8. Garanti og support
Sennheiser products are manufactured to the highest quality standards. For information regarding warranty terms and conditions, please refer to the warranty card included in your package or visit the official Sennheiser website. For technical support or service inquiries, please contact Sennheiser customer service.
Officiel Sennheiser Webwebsted: www.sennheiser.com