Introduction
Thank you for choosing the DOSS SoundBox XL Pro Bluetooth Speaker. This manual provides detailed instructions to help you set up, operate, and maintain your speaker, ensuring optimal performance and longevity. The SoundBox XL Pro delivers 50W of powerful stereo sound with enhanced bass, features a durable metal body, and offers up to 16 hours of playtime, making it ideal for various indoor and outdoor settings.

The DOSS SoundBox XL Pro Bluetooth Speaker, showcasing its sleek design and integrated handle.
What's in the Box
- 1 x DOSS SoundBox XL Pro Bluetooth Speaker
- 1 x Power Cable (Wall charger not included)
- 1 x User Manual
Product Overview
Audio Components
The SoundBox XL Pro is engineered for superior sound quality, featuring a combination of drivers and a passive radiator to deliver rich, clear audio.

Internal components of the SoundBox XL Pro, including dual 15W full-range drivers, dual 10W tweeters, and a passive radiator for 50W powerful sound.
Controls and Ports
The speaker features intuitive controls on the top panel and versatile connectivity ports on the rear.

Top control panel with buttons for power, mode selection, volume adjustment, playback control, TWS pairing, and Extra Bass activation.

Rear connectivity ports for Type-C charging, TF card, USB, and AUX-in, offering versatile playback options.
Setup
Initial Charging
Before first use, fully charge the speaker. Connect the provided power cable to the Type-C charging port on the rear of the speaker and a suitable USB power adapter (not included). The charging indicator light will show charging status and turn off when fully charged. A full charge takes approximately 6 hours.
Powering On/Off
Press and hold the Power button (
) on the top panel for 2-3 seconds to power the speaker on or off. A sound prompt will indicate the power status.
Operating Instructions
Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth mode. The Bluetooth indicator light will blink, indicating it's ready for pairing.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "DOSS SoundBox XL Pro" from the list.
- Once paired, the Bluetooth indicator light will turn solid blue, and you will hear a confirmation sound.

The DOSS SoundBox XL Pro utilizes Bluetooth 5.3 for fast and stable connections with your devices.
True Wireless Stereo (TWS) Pairing
You can pair two DOSS SoundBox XL Pro speakers together for an enhanced stereo sound experience.
- Ensure both speakers are powered on and not connected to any Bluetooth device.
- On one speaker, press the TWS button. The TWS indicator light will blink.
- On the second speaker, press the TWS button. Both speakers will attempt to connect to each other.
- Once successfully paired, both TWS indicator lights will turn solid, and you will hear a confirmation sound. The speakers will now function as a stereo pair.
- Connect your device to one of the paired speakers via Bluetooth as described above.

Diagram illustrating the TWS pairing process to create a wider stereo soundstage.
Extra Bass Function
Press the EXTRA BASS button on the top panel to activate or deactivate the enhanced bass mode. This feature amplifies the low frequencies for a deeper, more resonant sound.

Activate the Extra Bass function for a deeper and more impactful audio experience.
Playback Controls
- Play/Pause: Press the Play/Pause button (
) to play or pause audio. - Volume Up/Down: Press the + or - buttons to adjust the volume.
- Next/Previous Track: Long press the + button for the next track, and long press the - button for the previous track.
- Mode Button: Press the M button to switch between Bluetooth, AUX-in, TF Card, and USB playback modes.
Battery Life
The DOSS SoundBox XL Pro offers up to 16 hours of playtime at 50% volume, ensuring extended listening enjoyment.

Enjoy your favorite music for extended periods with the speaker's long-lasting battery.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker. Do not use harsh chemicals or abrasive materials.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To preserve battery life, fully charge the speaker at least once every three months if not in regular use. Avoid fully discharging the battery frequently.
- Water Resistance: The speaker is IPX5 waterproof, meaning it can withstand splashes and light rain. Do not submerge the speaker in water. Ensure the charging port cover is securely closed when exposed to water.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery; Power button not pressed correctly. | Charge the speaker fully. Press and hold the Power button for 2-3 seconds. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; Device Bluetooth off; Speaker already connected to another device. | Ensure speaker is in Bluetooth pairing mode (blinking light). Turn Bluetooth off/on on your device. Disconnect from other devices. |
| Poor sound quality / Distortion. | Volume too high; Audio source quality; Speaker too far from device; Obstructions. | Reduce volume. Try a different audio source. Move speaker closer to device. Remove obstructions. |
| TWS pairing fails. | Speakers already connected to a device; Incorrect pairing steps. | Ensure both speakers are disconnected from any Bluetooth devices before TWS pairing. Follow TWS pairing steps precisely. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | SoundBox XL Pro |
| Speaker Maximum Output Power | 50 Watts |
| Battery Life | 16 Hours (at 50% volume) |
| Charging Time | 6 Hours |
| Water Resistance Level | IPX5 (Water Resistant) |
| Connectivity Technology | Bluetooth 5.3 |
| Bluetooth Range | 99 Feet |
| Product Dimensions (L x W x H) | 11.8"D x 3.2"W x 4.9"H |
| Item Weight | 5.5 pounds (2.5 Kilograms) |
| Material | Aluminum, Metal, Plastic |
Warranty & Support
DOSS products are backed by a 12-month warranty, starting from the date of purchase, covering any quality-related concerns.
If you have any issues with the product, please feel free to contact us. We are committed to providing you with 24-hour prompt assistance and support!






