To connect 2 JBL Bluetooth speakers, use the JBL Portable app with two PartyBoost-compatible speakers, or press the speaker-link button on both speakers if they use the older JBL Connect system. This guide covers both methods so you can create a multi-speaker Bluetooth setup for louder sound or true stereo separation.
Before you start: compatibility and preparation
JBL uses two different wireless systems: PartyBoost and JBL Connect. These systems are not cross-compatible, so you must first check which system your speakers use. PartyBoost speakers have a PartyBoost button (often with a double-arrow icon), while older speakers have a JBL Connect button. If you mix a PartyBoost speaker with a Connect speaker, they will not link.
To prepare, turn on both speakers. Then connect your phone to one speaker by Bluetooth. The phone connects to one of the two speakers first, and that speaker starts playback before the other speaker is added. Start music on that speaker and, for best results, play music for more than 20 seconds before continuing.
How to link two PartyBoost speakers
Follow these steps in the JBL Portable app to link two PartyBoost speakers.
- Open the JBL Portable app after your phone is connected to one speaker by Bluetooth.
- Allow the app to detect the single speaker that is already playing music.
- Press the PartyBoost button on both speakers.
- Wait for the app to identify both speakers.
- Tap the PartyBoost button in the app, then choose Party or Stereo mode.
Once connected, audio plays from your phone through both linked speakers.
How to link two JBL Connect speakers
For speakers using the older JBL Connect system, the process is simpler and does not require an app:
- Turn on both speakers and ensure one is connected to your phone by Bluetooth.
- Press the JBL Connect button on both speakers.
- Wait for the speakers to recognize each other. The connection is complete when the indicator lights show a solid link.
JBL’s support page for the older Connect system says you can connect two speakers using JBL Connect.
Setting up stereo vs. party mode
Stereo Mode splits the audio into left and right channels for a wider soundstage. This mode works only when the two speakers are the same model. Party Mode plays the same audio from both speakers simultaneously, which is ideal for filling a larger space with sound. You can select either mode in the JBL Portable app after linking PartyBoost speakers.
Troubleshooting connection problems
If your speakers do not link, check these common issues:
- Confirm both speakers use the same system. PartyBoost does not work with JBL Connect or JBL Connect+ speakers. If one speaker uses PartyBoost and the other uses Connect, they cannot be linked.
- Stereo Mode requires identical models. If Stereo Mode does not appear or work, verify that both speakers are the exact same model. Party Mode will still work with different models.
- PartyBoost does not work over a computer Bluetooth connection. If connecting through a computer, PartyBoost will not work over Bluetooth. Use a phone or tablet instead.
Frequently Asked Questions
Can I connect more than two JBL speakers?
JBL’s Connect support page states it is only possible to connect two speakers together using the JBL Connect feature.
Do I need the JBL Portable app for all connections?
No. The app is required for PartyBoost speakers to select Party or Stereo mode. For older JBL Connect speakers, you simply press the Connect button on both speakers without an app.
What if my speakers use JBL Connect+?
JBL Connect+ is a separate system that is not compatible with PartyBoost or original JBL Connect. If your speakers use Connect+, follow the instructions in your speaker’s manual for linking them.
Why does only one speaker play sound after linking?
This usually happens when Stereo Mode is active but the speakers are different models. Switch to Party Mode in the app, or confirm both speakers are identical if you want stereo separation.
Can I use PartyBoost while the speaker is charging?
Yes, you can link PartyBoost speakers while they are plugged into a power source. The connection process works the same way whether the speakers are on battery or AC power.
