Caymuller DT620
Caymuller DT620 Open Ear Headphones with Microphone User Manual
Model: DT620
1. Introduktion
Thank you for choosing the Caymuller DT620 Open Ear Headphones. This manual provides detailed instructions for the proper use, setup, and maintenance of your new headphones. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
2. Produktet er slutview og funktioner
The Caymuller DT620 headphones are designed for comfort and functionality, featuring an open-ear design that allows you to stay aware of your surroundings while enjoying audio. Key features include:
- Komfort med åbent øre: Bud-free design for extended wear without discomfort, ensuring situational awareness.
- Advanced Noise Cancellation Mic: A 270° flexible microphone with noise-canceling technology and a mute button for clear communication in noisy environments.
- Ultra-light & Supreme Comfort: Weighing approximately 0.06 pounds, with skin-friendly soft silicone ear pads for comfortable, stable wear during various activities.
- Wireless Bluetooth 5.3 & Multi-point Connection: Offers stable and fast connection to two Bluetooth-enabled devices simultaneously, with a wireless range of up to 33 feet.
- Multifunktionel brug: Equipped with a multi-function button for easy control of calls and music, suitable for work, driving, running, hiking, cycling, and gaming.
- Lang batterilevetid: Provides up to 10 hours of continuous talk time and 200 hours of standby time on a single 2-hour charge.

Figure 2.1: Caymuller DT620 Open Ear Headphones with Microphone. This image displays the full product, highlighting its open-ear design and flexible microphone arm.

Figure 2.2: Key features of the Caymuller DT620 headphones, including 10 hours battery life, 2 hours charging time, Bluetooth 5.3, noise-canceling microphones, 15 meters connection distance, and lightweight comfortable design.
3. Hvad er der i æsken
Upon opening your product packaging, please ensure all items are present:
- Open Ear-hovedtelefoner x 1
4. Opsætning
4.1 Indledende opladning
Before first use, fully charge your headphones. Connect the included USB-C charging cable to the charging port on the headphones and to a compatible USB power source. A full charge takes approximately 2 hours.

Figur 4.1: Nærbillede view of the headphone's control panel, showing the multi-function button and the USB-C charging port, which is used for power input.
4.2 Bluetooth -parring
- Sørg for, at hovedtelefonerne er slukket.
- Tryk på multifunktionsknappen, og hold den nede, indtil indikatorlampen blinker blåt og rødt, hvilket angiver parringstilstand.
- Aktiver Bluetooth på din enhed (smartphone, tablet, bærbar computer), og søg efter tilgængelige enheder.
- Select "Caymuller DT620" from the list of found devices.
- Når der er oprettet forbindelse, lyser indikatorlampen konstant blåt eller blinker langsomt.
4.3 Multipunktforbindelse
The headphones support simultaneous connection to two Bluetooth devices. To connect to a second device:
- Connect the headphones to the first device as described in Section 4.2.
- Deaktiver Bluetooth på den første enhed.
- Sæt hovedtelefonerne tilbage i parringstilstand.
- Tilslut hovedtelefonerne til den anden enhed.
- Re-enable Bluetooth on the first device. The headphones should automatically connect to both devices. You can then seamlessly switch between them.

Figure 4.2: The Caymuller DT620 headphones demonstrating their ability to connect to two devices simultaneously, such as a smartphone and a tablet, via Bluetooth 5.3.
5. Betjeningsvejledning
5.1 Tænd/sluk
- Tænd: Tryk og hold multifunktionsknappen nede i 3 sekunder.
- Sluk: Tryk og hold multifunktionsknappen nede i 5 sekunder.
5.2 Musikafspilning
- Afspil/pause: Tryk enkelt gang på multifunktionsknappen.
- Næste nummer: Dobbelttryk på multifunktionsknappen.
- Forrige nummer: Tryk tre gange på multifunktionsknappen.
- Lydstyrke op: Tryk på '+'-knappen.
- Skrue ned for lyden: Tryk på '-' knappen.
5.3 Opkaldshåndtering
- Besvar/afslut opkald: Tryk enkelt gang på multifunktionsknappen.
- Afvis opkald: Tryk og hold multifunktionsknappen nede i 2 sekunder.
- Slå mikrofon til/fra: Press the dedicated mute button on the microphone arm.
Video 5.1: An official product video demonstrating the features and design of the Caymuller Open Ear Headphones with Mic. This video highlights the high sound quality, noise canceling capabilities, Bluetooth 5.3 connectivity, secure fit, comfortable wearing, USB-C charging, IP65 waterproof rating, and the ability to connect to two devices simultaneously.
6. Vedligeholdelse
To ensure the longevity and optimal performance of your Caymuller DT620 headphones, follow these maintenance guidelines:
- Rensning: Use a soft, dry cloth to wipe the headphones. Avoid using abrasive cleaners or solvents.
- Opbevaring: Opbevar hovedtelefonerne et køligt, tørt sted væk fra direkte sollys og ekstreme temperaturer.
- Vandeksponering: While designed for sweat resistance, these headphones are not water resistant. Avoid submerging them in water or exposing them to heavy rain.
- Opladning: Always use the provided USB-C cable for charging. Do not use damaged cables or chargers.
7. Fejlfinding
Hvis du støder på problemer med dine hovedtelefoner, kan du se følgende almindelige problemer og løsninger:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Hovedtelefonerne tændes ikke. | Lavt batteri. | Oplad hovedtelefonerne i mindst 2 timer. |
| Kan ikke parres med enheden. | Hovedtelefoner er ikke i parringstilstand; Bluetooth slukket på enheden; enheden er for langt væk. | Sørg for, at hovedtelefonerne er i parringstilstand (blinker blåt/rødt). Slå Bluetooth til på din enhed. Flyt enheden tættere på hovedtelefonerne (inden for 33 meter). |
| Ingen lyd eller lav lydstyrke. | Volume too low on headphones or device; not connected. | Increase volume on both headphones and connected device. Ensure headphones are properly connected. |
| Microphone not working or muffled. | Microphone muted; poor signal; software incompatibility. | Ensure microphone is not muted. Check connection stability. Some VoIP/A/V conference platforms may have compatibility issues; try with a different application or device. |
| Kan ikke oprette forbindelse til to enheder samtidigt. | Incorrect multipoint setup. | Follow the multipoint connection steps in Section 4.3 carefully. |
8. Specifikationer
| Feature | Detalje |
|---|---|
| Modelnavn | Open Ear Headphones with Mic |
| Modelnummer | DT620 |
| Mærke | Caymuller |
| Forbindelsesteknologi | Bluetooth |
| Trådløs kommunikationsteknologi | Bluetooth |
| Bluetooth version | 5.3 |
| Bluetooth rækkevidde | 33 fod (ca. 10 meter) |
| Batterilevetid (taletid) | Op til 10 timer |
| Standby tid | 200 timer |
| Opladningstid | 2 timer |
| Materiale | Silikone |
| Varens vægt | 0.317 ounce |
| Frekvensområde | 20 Hz til 20,000 Hz |
| Kontrolmetode | Røre |
| Støjkontrol | Active Noise Cancellation (for mic) |
| Vandmodstandsniveau | Ikke vandafvisende (svedtæt) |
9. Garanti og support
For warranty information and customer support, please refer to the product packaging or contact the retailer from whom you purchased the Caymuller DT620 headphones. Keep your purchase receipt as proof of purchase for any warranty claims.