1. Setup Guide
1.1 What's in the Box
Your Ultimate Ears WONDERBOOM 3 package includes:
- WONDERBOOM 3 wireless portable Bluetooth speaker (bungee attached to product)
- USB cable
- Documentation (quick start guide)

Figure 1.1: Contents of the WONDERBOOM 3 packaging, including the speaker and USB cable.
1.2 Initial Charging
Before first use, it is recommended to fully charge your WONDERBOOM 3. Connect the provided USB cable to the speaker's charging port and a compatible USB power source. A full charge typically takes approximately 2 hours.
1.3 Powering On and Bluetooth Pairing
To power on your WONDERBOOM 3, press the power button located on the top of the speaker. The speaker will emit an audible tone. To pair with a Bluetooth device:
- Turn on your WONDERBOOM 3.
- Press and hold the Bluetooth button (small dot icon) on the top of the speaker until you hear a tone and the LED indicator flashes rapidly. This indicates the speaker is in pairing mode.
- On your mobile device (smartphone, tablet, etc.), navigate to the Bluetooth settings and select 'WONDERBOOM 3' from the list of available devices.
- Once connected, the speaker will emit a confirmation tone and the LED indicator will glow solid.

Figure 1.2: The WONDERBOOM 3 speaker, ready for pairing.
Video 1.1: Official guide on how to pair your WONDERBOOM 3 speaker.
2. Operating Instructions
2.1 Basic Controls
- Volume Control: Use the large '+' and '-' buttons on the front of the speaker to adjust the volume.
- Play/Pause/Skip: Press the central Ultimate Ears button on the top of the speaker once to play or pause music. Double-press to skip to the next track.
2.2 Outdoor Boost Mode
For enhanced sound specifically tuned for outdoor environments, press the 'Outdoor Boost' button located on the bottom of the speaker. This mode optimizes audio for open spaces, providing a louder and clearer sound profile.

Figure 2.1: Experience bigger 360-degree sound with Outdoor Boost.
2.3 Double Up for Stereo Sound
You can pair two WONDERBOOM 3 speakers together for an even louder and more immersive stereo experience. To activate Double Up mode:
- Ensure both WONDERBOOM 3 speakers are powered on.
- On the first speaker, press and hold the central Ultimate Ears button until you hear a tone.
- Repeat the process on the second speaker. Both speakers will then connect, providing true stereo sound with distinct left and right channels.

Figure 2.2: Double Up your WONDERBOOM 3 speakers for enhanced stereo sound.
Video 2.1: Learn how to use the Double Up feature for party mode.
2.4 Durability and Portability
The WONDERBOOM 3 is designed for rugged use. It is IP67 rated, meaning it is waterproof and dustproof, capable of being submerged in 1 meter of water for up to 30 minutes. It also floats, making it ideal for use around pools or at the beach. The speaker is drop-tested from 5 feet (1.5 meters) and features a handy loop for easy portability.

Figure 2.3: WONDERBOOM 3 is waterproof, dustproof, and floatable.

Figure 2.4: Enjoy up to 14 hours of continuous audio playback.
3. Maintenance
3.1 Cleaning Your Speaker
Due to its IP67 rating, the WONDERBOOM 3 can be easily cleaned. Rinse the speaker with fresh water after exposure to saltwater or chlorinated water. For general cleaning, use a soft, damp cloth. Do not use harsh chemicals or abrasive materials.
3.2 Battery Care
To maximize battery life, avoid fully discharging the speaker frequently. Charge the speaker using the provided USB cable when the battery is low. Store the speaker in a cool, dry place when not in use for extended periods.
4. Troubleshooting
4.1 Connectivity Issues
- Speaker not pairing: Ensure the speaker is in pairing mode (flashing LED). Check your device's Bluetooth settings and forget any previous connections to the WONDERBOOM 3 before attempting to re-pair.
- Intermittent connection: Ensure your device's within the 131 ft (40 m) wireless range. Avoid obstacles that may interfere with the Bluetooth signal.
4.2 Sound Quality Issues
- Low volume: Increase the volume on both the speaker and your connected device. Consider activating Outdoor Boost mode if in an open environment.
- Distorted sound: Reduce the volume on your device or speaker. Ensure the audio source is not corrupted.
4.3 Power Issues
- Speaker not turning on: Ensure the battery is charged. Connect the speaker to a power source and try again.
- Battery draining quickly: Reduce volume levels. Ensure no background apps on your connected device are excessively using Bluetooth.
5. Specifications
| Feature | Detail |
|---|---|
| Model Name | Wonderboom 3 |
| Wireless Range | 131 ft (40 m) |
| Battery Life | 14 Hours |
| Waterproof/Dustproof Rating | IP67 |
| Drivers | Two 40 mm active drivers, two 46.1 mm x 65.2 mm passive radiators |
| Maximum Sound Level | 86 dBC (Standard), 87 dBC (Outdoor Boost) |
| Drop Tested | From 5 ft (1.5 m) |
| Dimensions (D x W x H) | 4.65"D x 4.53"W x 4.65"H |
| Item Weight | 14.4 ounces |
| Charging Time | 2 Hours |
| Connectivity | Bluetooth, USB |

Figure 5.1: WONDERBOOM 3 dimensions and control layout.
6. Warranty Information
The Ultimate Ears WONDERBOOM 3 comes with a Limited Warranty. Please refer to the included documentation for specific terms and conditions regarding warranty coverage and duration.
7. Support
For further assistance, product registration, or to explore other Ultimate Ears products, please visit the official Ultimate Ears store:





