JBL Xtreme 3
Product Specifications
General Specifications
Output power (W) | 2 x 25W RMS woofer + 2 x 25W RMS tweeter |
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Audio Specifications
Dynamic frequency response range (Hz) | 53.5 Hz - 20k Hz |
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Dimension Specifications
Dimensions (in) | 11.75 x 5.35 x 5.28 |
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Dimensions (cm) | 29.8 x 13.6 x 13.4 |
Weight (kgs) | 1.97 |
Weight (lbs) | 4.34 |
Control Connect Specifications
Bluetooth profiles | A2DP 1.3, AVRCP 1.6 |
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Bluetooth frequency | 2400MHz - 2483.5 MHz |
Bluetooth transmitted modulation | GFSK, π/4 DQPSK, 8DPSK |
Bluetooth transmitter power | ≤ 12dBm (EIRP) |
Bluetooth version | 5.1 |
Documents & Downloads
Spec Sheets
Quick Start Guide
Videos
What’s in the Box
- 1 x JBL Xtreme 3 Speaker
- 1 x JBL Adaptor with Power Cable + Regional Plug
- 1 x JBL Xtreme 3 Strap
- 1 x Quick-Start Guide
- 1 x Safety Sheet
- 1 x Warranty Card

FAQs & How-Tos
Software Update Release Notes
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Software Version: V0.2.1.6
Version (iOS): V5.6.6
Version (Android): V5.6.6
Release Date: August 2, 2022
Release Media: OTA (over the air) via JBL Portable App
What’s New
- Fixed audio drop with iOS 15.1 or later in PartyBoost mode
- Fixed the PartyBoost connection issue
- Other bug fixes and performance improvements
If you create a Stereo Pair using the JBL Portable App and you come within range of additional PartyBoost compatible speakers while they are ON, the app will find these speakers. This will break the stereo pair and create a mono PartyBoost group that includes all active speakers that are in proximity. This only happens when the JBL Portable App is actively running on the source device, including when it is running in the background, and when these other speakers are ON. To avoid this scenario, make sure the app is completely closed, without running in the background before coming near any additional PartyBoost speakers that happen to be ON.
NOTE: The Portable App does not need to be running in order to enjoy Stereo sound from two speakers
Software updates for your speaker can be done using the JBL Portable app.
Download it from the Apple App store and Google Play store.
If there is an available update, look for the small red dot above the gear icon and follow the download instructions (see image below).
If you have an issue with your device it is always worth checking if there is a Software update available and performing the installation if there is.
1. Turn on both speakers.
2. Connect your device to one of the two speakers via Bluetooth.
3. Start streaming music to that speaker (for best results play music on this speaker for more than 20 seconds before proceeding with the next steps).
4. Open the JBL Portable app.
5. Allow the app to detect the single speaker playing music.
6. Once detected, press the Connect/Partyboost button on both speakers.
7. Allow the app to identify both speakers.
8. Click the Partyboost button, you will see the option for Party or Stereo, select Stereo.
Please note: Stereo Mode can only be enabled when 2 of the same speaker model are used.
For example, you will not be able to achieve Stereo Mode with a Flip 5 and Flip 6, only Party Mode.
Also, it is not possible to pair speaker models with Connect and Connect+ together, or pair to speaker models with Partyboost.

2. Press the Partyboost button on the first speaker.
3. Turn on the second speaker that you want to connect in Partyboost mode.
4. Now press the Partyboost button on the second speaker.
5. After a few seconds, both Partyboost speakers should connect and play together.
It can take a few seconds after music is started before sound will be heard from both speakers.
This is also the process for connecting more than two speakers in Party mode, simply turn on the other compatible speakers and press the Partyboost buttons.

NOTE: Speakers effected by this are the JBL Flip 5, JBL Flip 6, JBL Charge 5, JBL Pulse 4, JBL Xtreme 3, and JBL Boombox 2, as well as all future products featuring the PartyBoost feature.
• Try to shutdown other products that have Bluetooth, but are not being used. They are often the reason for interference even though they are not being used.
• Do not stand too close to your Wi-Fi router since a Wi-Fi signal is stronger and in many cases will "overlap" the connection.
• Be aware of walls around you. Concrete and brick walls will often interrupt the signal, as it cannot pass through such thick walls.
• Bluetooth signals cannot travel through water, which includes the human body. Make sure with wireless headphones to keep your source device and the receiver on the same side of your body.
• Open spaces such as parks can cause issues for your devices, as open air is "bad" for any Bluetooth signal if it cannot reflect from objects around you.
The new PartyBoost does not support the previous Connect and Connect+ features. For example: You will not be able to successfully connect the new PartyBoost enabled Flip 5 with a Connect+ enabled speaker like the Pulse 3 or Flip 4. You will not be able to connect the Boombox 2 to the original Boombox speaker.
If you are having trouble with distortion or drop out, try the following suggestions:
Move the audio source closer to the speakers
Move the speakers closer to each other
Make sure the streaming speaker (host) only connects to one audio source, disconnect the Bluetooth connection between the streaming speaker (host) and other audio source
Make sure the audio source only connects with one streaming speaker (host), disconnect the Bluetooth connection between the audio source and other speakers
Restart both your speakers and the audio source
Make sure speakers are away from other sources of wireless signal – you could be experiencing interference
Re-pair the audio source with your speaker
If you’re streaming audio content from the internet, the issue could be with the internet connection and not your speaker
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