1. Taw qhia
The THOMSON RT400DABBTBK is a versatile portable radio designed to provide a comprehensive audio experience. It features DAB+ and FM radio reception, Bluetooth connectivity for wireless audio streaming, USB playback for MP3 files, and an AUX-IN port for external devices. Additionally, it includes a dual alarm clock function, making it a practical and convenient device for various settings.

Daim duab 1.1: THOMSON RT400DABBTBK portable radio. This image shows the front of the radio, featuring the speaker grille on the left and the LED display with control buttons on the right. The display indicates the time, date, and battery level.
2. Cov lus qhia txog kev nyab xeeb tseem ceeb
- Nyeem tag nrho cov lus qhia ua tib zoo ua ntej siv lub cuab yeej.
- Khaws phau ntawv no rau yav tom ntej siv.
- Tsis txhob tso lub cuab yeej los nag, noo noo, lossis kub heev.
- Tsis txhob disassemble lub unit. Xa tag nrho cov kev pabcuam rau cov neeg ua haujlwm tsim nyog.
- Use only the specified power adapter (DC 5V 2A) and USB-C cable.
- Xyuas kom muaj cua tshuab nyob ib ncig ntawm lub cuab yeej.
- Tsis txhob tso lub cuab yeej ze ntawm qhov chaw sov lossis tshav ntuj ncaj qha.
3. Cov ntsiab lus ntawm pob
Thov xyuas kom meej tias txhua yam khoom muaj nyob:
- THOMSON RT400DABBTBK Radio
- USB-C Charging Cable
- Owner's Manual (cov ntaub ntawv no)
4. Khoom Layout thiab tswj

Daim duab 4.1: Front Panel Controls and Display. This image provides a detailed view of the radio's front panel, featuring the circular speaker on the left and the rectangular LED display on the right. Below the display are four control buttons: MODE, PRESET, PLAY/PAIR, and MENU. The display shows '12/8/2025 Mardi 16:24' with alarm and stop icons.
4.1. Tswj khawm
- POWER / MODE: Press to turn on/off. Press to switch between DAB+, FM, Bluetooth, USB, and AUX-IN modes.
- PRESET: Access and save preset radio stations.
- PLAY / PAIR: In Bluetooth mode, press to play/pause or initiate pairing. In USB mode, play/pause.
- CEEB TOOM: Access system settings and options for the current mode.
- Rotary Knob (Top Right): Adjust volume, navigate menus, or tune frequencies. Press to confirm selections.
4.2. Qhia cov ntaub ntawv
The LED display shows various information depending on the operating mode:
- Current time and date (12/24h format).
- Radio station name, frequency, or DAB+ service information.
- Bluetooth txuas xwm txheej.
- USB track information.
- Roj teeb qhia theem.
- Alarm icons (Alarm 1, Alarm 2).
5. Teeb tsa
5.1. Fais fab rau
The radio can be powered in two ways:
- AC zog: Connect the supplied USB-C cable to the DC 5V 2A input on the radio and to a suitable USB power adapter (not included).
- Rechargeable Roj teeb: The radio has a built-in 1500mAh Lithium rechargeable battery. Ensure it is fully charged before portable use. The battery charges automatically when connected to AC power.
5.2. Kev Kho Antenna
For optimal DAB+ and FM radio reception, fully extend the telescopic antenna. Adjust its position for the best signal quality.
5.3. Thawj kauj ruam
Upon first use or after a factory reset, you may need to configure basic settings:
- Xaiv hom lus: Use the MENU button to navigate to System Settings, then select 'Language' to choose your preferred language (French, English, German, Italian, Spanish, Portuguese, Dutch).
- Sijhawm thiab Hnub: The time and date are often automatically updated in DAB+ mode. If not, navigate to System Settings > Time/Date to set manually.
6. Ua haujlwm hauv xov tooj cua
6.1. DAB+ Radio Mode
- Nias lub MODE khawm kom xaiv hom DAB+.
- The radio will automatically perform a scan for available DAB+ stations.
- Use the rotary knob to scroll through the list of found stations. Press the knob to select a station.
- Txhawm rau txuag chaw nres tsheb raws li qhov preset, nias thiab tuav lub PRESET button, select a preset number using the rotary knob, and press the knob to confirm.
6.2. FM xov tooj cua hom
- Nias lub MODE khawm xaiv FM hom.
- To auto-scan for stations, press and hold the rotary knob. The radio will scan and save stations.
- To manually tune, rotate the knob to adjust the frequency.
- Txhawm rau txuag chaw nres tsheb raws li qhov preset, nias thiab tuav lub PRESET button, select a preset number using the rotary knob, and press the knob to confirm.
6.3. Bluetooth hais lus hom
- Nias lub MODE button to select Bluetooth mode. The display will show 'Bluetooth Pairing'.
- On your smartphone or tablet, enable Bluetooth and search for 'THOMSON RT400DABBTBK'.
- Select the device to pair. Once connected, the display will show 'Bluetooth Connected'.
- Play audio from your paired device. Use the radio's rotary knob to adjust volume.
6.4. USB Playback
- Ntxig ib USB flash drive uas muaj MP3 files rau hauv USB chaw nres nkoj.
- Nias lub MODE khawm xaiv USB hom.
- The radio will automatically start playing MP3 files. Use the rotary knob to navigate tracks and the PLAY/PAIR khawm ua si / ncua.
6.5. AUX-IN hom
- Connect an external audio device (e.g., MP3 player) to the AUX-IN 3.5mm port using an audio cable (not included).
- Nias lub MODE khawm xaiv AUX-IN hom.
- Control playback from your external device. Use the radio's rotary knob to adjust volume.
6.6. Siv Lub Mloog Pob Ntseg
Connect headphones (not supplied) to the 3.5mm headphone jack for private listening. The main speaker will be muted automatically.
7. Lub tswb moos
The radio features a dual alarm clock.
- Nias lub MENU button and navigate to 'Alarm Settings'.
- Select 'Alarm 1' or 'Alarm 2' to configure.
- Teem sijhawm: Use the rotary knob to set the desired alarm time.
- Alarm Source: Choose your preferred wake-up sound: DAB+, FM, USB, or Bluetooth.
- Tswb Duration: Set the alarm duration (15, 30, 45, 60, or 90 minutes).
- Tswb zaus: Select how often the alarm should sound: Once, Daily, Weekdays, or Weekends.
- Ntim: Kho lub tswb ntim.
- Qhib / Disable: Turn the alarm ON or OFF.
8. Qhov System Chaw
Access system settings by pressing the MENU button and navigating to 'System Settings'.
- Zaub Settings: Adjust backlight duration (10 to 180 seconds) and choose between 12-hour or 24-hour time format.
- Lus: Select the display language (French, English, German, Italian, Spanish, Portuguese, Dutch).
- Automatic Station Update: Enable or disable automatic updates for radio stations.
- Hoobkas pib dua: Reset tag nrho cov kev teeb tsa rau lawv qhov tseem ceeb.
9. Kev tu
9.1. Kev ntxuav
Wipe the radio's surface with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents, as these may damage the finish.
9.2. Kev kho roj teeb
To prolong the life of the built-in Lithium battery:
- Tsis txhob tso lub roj teeb tas li ntau zaus.
- Charge the battery regularly, even if the radio is not in use for extended periods.
- Store the radio in a cool, dry place when not in use.
10. Kev daws teeb meem
| Teeb meem | Ua Tau | Kev daws |
|---|---|---|
| Tsis muaj zog | Battery discharged or power cable not connected. | Connect the USB-C cable to a power source. Charge the battery. |
| Kev txais xov tooj cua tsis zoo | Lub kav hlau txais xov tsis ntev los yog thaj chaw teeb liab tsis muaj zog. | Ua kom ntev thiab kho lub kav hlau txais xov telescopic. Sim txav lub xov tooj cua mus rau lwm qhov chaw. |
| Bluetooth tsis txuas | Radio not in pairing mode or device already paired. | Ensure the radio is in Bluetooth mode and 'Bluetooth Pairing' is displayed. Forget the device on your phone/tablet and try pairing again. |
| USB playback tsis ua haujlwm | USB drive tsis format zoo los yog tsis tau txais kev txhawb nqa file hom. | Ensure USB drive is formatted to FAT32 and contains MP3 files. Try a different USB drive. |
| tswb tsis suab | Alarm disabled or incorrect settings. | Check alarm settings (time, source, frequency, enable/disable status). |
11. Cov lus qhia tshwj xeeb
| Feature | Specification |
|---|---|
| Hom | THOMSON |
| Qauv nab npawb | RT400DABBTBK |
| Xov tooj cua Bands txaus siab | DAB+, FM |
| Connectivity Technology | Bluetooth |
| Tshwj xeeb Feature | Portable |
| Hwj chim Source | Battery Powered, Corded Electric (DC 5V 2A via USB-C) |
| Roj teeb | 1500mAh Rechargeable Lithium roj teeb |
| Hom zaub | LED |
| Khoom Dimensions (L x W x H) | 8 x 5 x 15 cm |
| Yam Nyhav | 300 Nws |
| Compatible Devices | MP3 Player, Speaker, Headphones, Tablet |
12. Warranty thiab Support
This THOMSON RT400DABBTBK radio comes with a 1-xyoo kev tsim khoom warranty.
For further support, troubleshooting, or warranty claims, please refer to your point of purchase or visit the official THOMSON brand store: