Introduction
Welcome to the DOSS Extreme Boom Pro Bluetooth Speaker instruction manual. This guide provides detailed information on setting up, operating, maintaining, and troubleshooting your new speaker. Designed for powerful sound and outdoor adventures, the DOSS Extreme Boom Pro offers 100W stereo sound, rich bass, IPX6 waterproofing, and a long-lasting 20-hour playtime. It also features a built-in power bank and dynamic mixed-color LED lights to enhance your audio experience.

The DOSS Extreme Boom Pro Bluetooth Speaker, featuring a black body with orange accents and dynamic LED lights.
Setup
What's in the Box
- 1 x Extreme Boom Pro Speaker
- 1 x USB-C Charging Cable
- 1 x Detachable Strap
- 1 x User Manual
Initial Charging
Before first use, fully charge your DOSS Extreme Boom Pro speaker using the provided USB-C charging cable. Connect the USB-C end to the speaker's DC IN port and the USB-A end to a compatible power adapter (not included). The battery indicator lights will show charging progress.

The speaker is designed for up to 20 hours of playtime on a single charge.
Bluetooth Pairing
To pair your speaker with a Bluetooth device:
- Power on the DOSS Extreme Boom Pro speaker. It will automatically enter Bluetooth pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "Extreme Boom Pro" from the list to connect.
- Once connected, you will hear an audible confirmation.
The speaker supports Bluetooth 5.3 for a stable and fast connection up to 99 feet.
Official product video demonstrating the DOSS Extreme Boom Pro speaker's features and connectivity.
Operating
Controls Overview
The speaker features intuitive top-panel controls:
- Power Button: Press and hold to turn on/off. Tap to enter Bluetooth pairing.
- M Button: Press to change play modes (Bluetooth, Aux-in, Micro SD). Press and hold to turn Extra Bass on/off.
- PartySync/TWS Button: Press to enter/exit PartySync pairing. Press and hold to enter/exit TWS pairing.
- Light Button: Press to cycle through 6 different light modes (breathing, quarter rocking, rippling, rolling, crossing, and off). Press and hold for fixed light color.
- Play/Pause Button: Tap to play or pause music.
- Volume - / Previous Track: Tap for previous track. Press and hold to decrease volume.
- Volume + / Next Track: Tap for next track. Press and hold to increase volume.

The speaker's top panel features clearly labeled control buttons for easy operation.
Sound Modes
The DOSS Extreme Boom Pro delivers powerful audio with its 100W sound system. Activate the Extra Bass Mode by pressing and holding the 'M' button for deeper, richer bass. Dual passive radiators enhance the low-end frequencies for a more impactful sound experience.

Diagram showing the internal components of the speaker, including dual woofers, tweeters, DSP technology, and passive radiators.
Light Modes
Customize your listening experience with dynamic mixed-color LED lights that sync to the beat of your music. Choose from 6 different light modes: breathing, quarter rocking, rippling, rolling, crossing, and off. Simply press the Light button to cycle through these options.
PartySync Mode
Elevate your party by connecting multiple DOSS Extreme Boom Pro speakers. With just a few taps, you can easily pair 2 or up to 100 Extreme Boom Pros together for a powerful, synchronized stereo sound. This mode is perfect for larger gatherings or creating an immersive audio environment.
Power Bank Function
The speaker features a built-in USB-A power bank with a 10400mAh large battery capacity. This allows you to charge your phone or other devices in case of an emergency. To activate the power bank function, ensure the speaker is powered on. Note: Press the M+O button to cancel battery-saving functions before charging your phone.

The speaker's power bank feature allows for convenient charging of mobile devices on the go.
Maintenance
Waterproof Features
The DOSS Extreme Boom Pro boasts an IPX6 waterproof rating, making it suitable for various outdoor environments. It can withstand powerful water jets, making it ideal for poolside, beach, or camping use. Always ensure the charging port cover is securely closed to maintain its waterproof integrity.

The speaker demonstrating its IPX6 waterproof capability by being partially submerged in a shallow stream.
Cleaning
To clean your speaker, use a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners, as these may damage the surface or waterproof seals. For stubborn dirt, a mild soap solution can be used, followed by wiping with a clean, damp cloth.
Troubleshooting
Common Issues & Solutions
- Low Volume: To maximize the speaker's sound volume, ensure both the speaker's volume and your connected device's volume are turned up to their maximum levels.
- Connectivity Issues: If the speaker fails to connect or maintain a stable Bluetooth connection, try resetting the speaker (using the reset pinhole if available) and re-pairing it with your device. Ensure no other devices are interfering with the Bluetooth signal.
- Speaker Not Powering On: Ensure the speaker is fully charged. If it still doesn't power on, try connecting it to a different power source or charging cable.
Specifications
| Feature | Description |
|---|---|
| Brand | DOSS |
| Model Name | Extreme Boom Pro |
| Speaker Type | 100 Watt Outdoor Bluetooth Speaker with loud bass |
| Connectivity Technology | Bluetooth, 3.5mm Aux-in, TF Card |
| Wireless Communication Technology | Bluetooth |
| Bluetooth Range | 99 Feet |
| Battery Life | 20 Hours (at 50% volume, no Extra Bass, Lights off) |
| Battery Capacity | 10400 Milliamp Hours |
| Charging Time | 4.5 Hours |
| Is Waterproof | Yes (IPX6) |
| Product Dimensions | 7.75"D x 15.98"W x 9.37"H |
| Item Weight | 7.13 pounds (3.24 Kilograms) |
| Included Components | 1 x Strap, 1 x USB-C charging cable, 1 x User Manual, 1 x Extreme Boom Pro |
Warranty and Support
Warranty Information
The DOSS Extreme Boom Pro comes with a One-Year Warranty from the date of purchase, covering any quality-related concerns. Please retain your proof of purchase for warranty claims.
Customer Support
If you have any issues with the product or require assistance, please feel free to contact DOSS customer support. We are committed to providing you with 24-hour prompt assistance and support.

Contact DOSS support via phone or email for assistance.





