1. Introduktion
Thank you for choosing the TRANSFORMERS TF-T28 Earphones. These true wireless stereo (TWS) earbuds are designed to provide a high-fidelity audio experience, clear communication, and low-latency performance for gaming and everyday use. Featuring Bluetooth 5.4 connectivity, IPX4 waterproofing, and a comfortable in-ear design, the TF-T28 is built for versatility and durability.
2. Pakkens indhold
Markér venligst feltet for følgende elementer:
- 1 x Emballageæske
- 2 x TRANSFORMERS TF-T28 Bluetooth-øretelefoner (venstre og højre)
- 1 x opladningsetui
- 1 x opladningskabel (Type-C)
- 1 x brugermanual
3. Produktet er slutview
The TRANSFORMERS TF-T28 earphones are available in two distinct designs: a yellow 'Bumblebee' theme and a black 'Optimus Primal' theme. Both versions offer the same advanced features and performance.

Bumblebee themed TF-T28 earphones and charging case.

Optimus Primal themed TF-T28 earphones and charging case.
The earphones feature a new generation Bluetooth V5.4 chip, enhancing signal penetration and reducing sound quality loss and delay. They are designed with IPX4 life-grade waterproofing, making them resistant to daily rain and sweat.

New generation Bluetooth V5.4 chip for enhanced connectivity.

IPX4 life-grade waterproof design resists daily rain and sweat.
The TF-T28 earphones are engineered for a comfortable and secure fit, with a lightweight design (approximately 3.2g per earbud) and skin-friendly materials. The ergonomic design ensures a 98.86% fitting degree for various ear shapes.

Ergonomic design for a comfortable and secure fit, with optimized weight distribution.
The earphones feature a 13mm giant diaphragm for Hi-Fi level sound quality, delivering rich and vivid audio. They also incorporate AI call noise reduction technology for clear voice transmission during calls, even in noisy environments.

13mm giant diaphragm for high-fidelity sound with low distortion.

AI call noise reduction technology for clear voice calls.
4. Opsætning
4.1 Opladning af øretelefoner og etuiet
Before first use, fully charge the earphones and charging case. The charging case provides additional power for extended listening.
- Placer høretelefonerne i opladningsetuiet.
- Connect the provided Type-C charging cable to the charging port on the case and a USB power source (e.g., wall adapter, computer USB port).
- The indicator lights on the case will show the charging status. Once fully charged (approximately 1.5 hours for the case), the lights will indicate completion.
- A single earbud charge provides approximately 5 hours of music time. The charging case extends the total battery life to up to 40 hours.
4.2 Bluetooth -parring
To connect your TF-T28 earphones to your device:
- Sørg for, at høretelefonerne er opladet.
- Open the charging case. The earphones will automatically enter pairing mode, indicated by flashing lights (if applicable, refer to specific light indicators on the product).
- Gå til Bluetooth-indstillingerne på din enhed (smartphone, tablet, computer).
- Søg efter available devices and select "TRANSFORMERS TF-T28" from the list.
- Once connected, you will hear a confirmation tone, and the indicator lights on the earphones will change (e.g., turn off or solid).
- Høretelefonerne genopretter automatisk forbindelsen til den sidst parrede enhed, når de tages ud af etuiet, hvis Bluetooth er aktiveret på enheden.
5. Betjeningsvejledning
5.1 Tryk på kontrolelementer
The TF-T28 earphones feature smart touch controls on each earbud. The functions are as follows:

Detailed touch control functions for the TF-T28 earphones.
| Gestus | Right Earbud Function | Left Earbud Function |
|---|---|---|
| Tryk én gang | Lydstyrke op | Lydstyrke ned |
| Tryk to gange | Answer a call / Hang up the phone | |
| Tryk tre gange | Forrige sang | Næste sang |
| Tryk og hold i to sekunder | Switch Game/Music mode | Call voice assistant / Reject call |
5.2 Skift tilstande
The TF-T28 earphones support dual modes: Music Mode and Game Mode.
- Musiktilstand: Provides a wide live sound field, enhances vocals, and delivers bright and clear tones for an immersive listening experience.
- Spiltilstand: Offers ultra-low latency (down to 0.06 seconds) for stable audio and precise sound positioning, giving you a competitive edge in gaming.
To switch between modes, press and hold the right earbud for two seconds.
6. Vedligeholdelse
To ensure the longevity and optimal performance of your TF-T28 earphones, follow these maintenance guidelines:
- Rensning: Tør regelmæssigt øretelefonerne og opladningsetuiet af med en blød, tør og fnugfri klud. Undgå at bruge skrappe kemikalier eller slibende materialer.
- Vandtæthed: The earphones are IPX4 rated, meaning they are resistant to splashing water and sweat. Do not submerge them in water or expose them to heavy rain. Dry them thoroughly if they get wet.
- Opbevaring: Når de ikke er i brug, skal øretelefonerne opbevares i deres opladningsetui for at beskytte dem mod støv og skader. Opbevar dem et køligt og tørt sted væk fra ekstreme temperaturer.
- Opladning: Brug kun det medfølgende opladningskabel eller et certificeret Type-C-kabel. Undgå at overoplade eller aflade batteriet helt ofte.
7. Fejlfinding
If you encounter any issues with your TF-T28 earphones, try the following steps:
- Ingen lyd-/forbindelsesproblemer:
- Sørg for, at begge øretelefoner er opladet.
- Sluk og tænd for din enheds Bluetooth, og prøv derefter at parre igen.
- Forget the "TRANSFORMERS TF-T28" device in your phone's Bluetooth settings and re-pair.
- Ensure the earphones are within the 10-meter transmission range of your device.
- Kun én øreprop virker:
- Place both earbuds back into the charging case, close the lid, wait a few seconds, then take them out again. This often resets the connection.
- Check if both earbuds have sufficient battery.
- Opladningsproblemer:
- Sørg for, at opladningskablet er korrekt tilsluttet til både etuiet og strømkilden.
- Prøv et andet opladningskabel eller en anden strømadapter.
- Rengør opladningskontakterne på ørepropperne og indersiden af etuiet med en tør vatpind.
- Berøringsknapper reagerer ikke:
- Sørg for, at dine fingre er rene og tørre, når du bruger berøringsknapperne.
- Prøv at genstarte øretelefonerne ved at lægge dem i etuiet og tage dem ud.
8. Specifikationer

Key technical specifications of the TF-T28 earphones.
| Feature | Specifikation |
|---|---|
| Model | TRANSFORMERS TF-T28 |
| Bluetooth version | V5.4 |
| Vandtæt niveau | IPX4 |
| Transmissionsafstand | Cirka 10 meter (33 fod) |
| Højttaler diameter | φ13 mm |
| Højttalerimpedans | 32Ω ±15 % |
| Music Time (Single Charge) | Ca. 5 timer |
| Samlet batterilevetid (med opladningsetui) | Op til 40 timer |
| Hovedtelefonens batterikapacitet | 30mAh |
| Opladningsetui Batterikapacitet | 200mAh |
| Kontrolmetode | Tryk på betjening |
| Højttalerkraft | 5mW |
| Opladningstid (etui) | ≤1.5 timer |
| Nominel input | 5V-200mA |
| Materiale | Plast |
| Lydisolering | Ja |
| Antal chauffører | 2 |
| Total harmonisk forvrængning | 1% |
| Frekvensresponsområde | 20 - 20000 Hz |
| Følsomhed | 96dB |
| Med mikrofon | Ja (AI-opkaldsstøjreduktion) |
| Aktiv støjreduktion | No (Features AI Call Noise Reduction, not ANC for listening) |
| Vægt (pr. øreprop) | Ca. 3.2 g |
9. Brugertips
- For optimal lydkvalitet og klarhed under opkald skal du sørge for, at ørepropperne sidder korrekt i dine ører.
- Regularly clean the earbud tips and charging contacts to prevent debris buildup that could affect performance.
- If experiencing audio dropouts, try to reduce interference by moving away from other wireless devices or obstacles.
- Utilize Game Mode for competitive gaming to benefit from the ultra-low latency.
- Keep the charging case charged to maximize the total listening time on the go.
10. Garanti og support
For garantioplysninger, teknisk support eller serviceforespørgsler henvises til kontaktoplysningerne fra din forhandler eller producentens officielle webwebstedet. Behold din købskvittering som købsbevis.





