The simplest way to connect two JBL speakers

Most JBL speakers connect wirelessly through Bluetooth, and the method depends on which model you own. Some JBL speakers support PartyBoost (JBL's pairing feature), which lets you link two compatible speakers so they play the same audio in stereo or as a louder single output. Others use standard Bluetooth pairing, which works differently. A few older or wired models may require a physical cable connection instead.

The fastest way to know which method works for your speaker is to check the model name on the back or bottom of the device, then look up that specific model in JBL's support documentation or your user manual. The connection method varies enough between models that guessing usually wastes time.

Key Takeaways

  • JBL speakers with PartyBoost can pair two speakers wirelessly to play together, but only certain models support this feature.
  • Standard Bluetooth pairing connects two speakers to the same phone or device, but they play independently rather than as a synchronized pair.
  • Some JBL speakers have a 3.5mm aux input or USB connection that lets you wire them together or to a source device.
  • The pairing process takes about two minutes and requires both speakers to be powered on and within 10 feet of each other.

Connecting two JBL speakers with PartyBoost

PartyBoost is JBL's built-in feature for linking two compatible speakers. It works on models like the JBL Flip, JBL Charge, JBL Xtreme, and several others, but not all JBL speakers have it. If your model supports PartyBoost, you will see a dedicated button or icon on the speaker itself, usually labeled "PartyBoost" or shown as two linked speaker symbols.

To connect two speakers with PartyBoost, power on both speakers and hold the PartyBoost button on the first speaker for about three seconds until you hear a tone or see a light flash. Then press the PartyBoost button on the second speaker within 10 seconds. The speakers will search for each other and connect. Once linked, they will stay paired until you manually disconnect them, even if you turn them off and back on.

After pairing, play audio from your phone or device and both speakers will output the same sound. You can adjust the overall volume from either speaker or from your source device. If you want to use the speakers separately again, press and hold the PartyBoost button on either speaker until you hear a disconnect tone.

Using standard Bluetooth to play from two speakers at once

If your JBL speaker does not have PartyBoost, you can still connect two speakers to the same phone or device through regular Bluetooth, but they will not sync perfectly. Both speakers will play the same audio, though there may be a slight delay between them, which is noticeable if you are standing between the two.

To do this, pair the first speaker to your phone through your phone's Bluetooth settings as you normally would. Then go back to your phone's Bluetooth menu and pair the second speaker the same way. Once both are connected, play audio and it will come out of both speakers. You can control the volume on each speaker independently or from your phone.

This method works but is not ideal for synchronized playback because Bluetooth does not may provide the two speakers will stay perfectly in time with each other. For true stereo or synchronized sound, PartyBoost or a wired connection is better.

Connecting JBL speakers with a cable

Some JBL speakers, particularly larger or older models, have a 3.5mm aux input jack on the back or side. If both your speakers have this input, you can connect them with a 3.5mm stereo cable (the same type used for headphones). Plug one end into the aux output of your audio source—a phone with a headphone jack, a computer, or an audio receiver—and the other end into the first speaker's aux input. Then run a second 3.5mm cable from the first speaker's aux output to the second speaker's aux input.

This method gives you the most reliable connection and the best sound quality, since the audio is not being compressed by Bluetooth. Both speakers will play in perfect sync. The downside is that you are tethered by cables and cannot move the speakers around freely.

If your phone does not have a headphone jack, you will need a USB-C or Lightning adapter (depending on your phone model) that includes a 3.5mm output. These adapters are inexpensive and widely available.

Checking if your JBL speaker supports PartyBoost

Not every JBL speaker has PartyBoost, so before you spend time trying to pair two speakers, confirm your model supports it. Look at the physical speaker for a button or icon labeled "PartyBoost" or showing two linked speakers. If you do not see one, your model likely does not have this feature.

You can also check the user manual or JBL's website by searching for your model number. The manual will list all the buttons and features on your speaker. If PartyBoost is not mentioned, you will need to use standard Bluetooth pairing or a cable connection instead.

Troubleshooting when speakers will not connect

If two speakers are not pairing, start by making sure both are fully charged and powered on. Move them within 10 feet of each other and away from other Bluetooth devices that might interfere, like a laptop or smartwatch. Then try the pairing process again from the beginning.

If you are using PartyBoost and the speakers still will not connect, turn both speakers off, wait 10 seconds, and turn them back on. Then try pairing again. If standard Bluetooth pairing is not working, forget both speakers from your phone's Bluetooth settings and pair them again from scratch.

If one speaker pairs but the other will not, try pairing them in the opposite order—start with the second speaker instead of the first. Some models are particular about which speaker initiates the connection.

Frequently Asked Questions

Can I connect more than two JBL speakers together?

PartyBoost typically supports only two speakers at a time. If you want to connect three or more JBL speakers, you would need to pair them through standard Bluetooth to your phone or device, though they will not stay perfectly synchronized. Some JBL party speakers have a different feature that supports multiple units, so check your manual.

Will the speakers play in stereo or just the same audio twice?

With PartyBoost, both speakers play the same audio at the same volume—it is not true stereo separation. If you want left and right channel separation, you need a wired connection with a stereo cable, or a speaker system specifically designed for stereo output.

Do I need to pair the speakers every time I use them?

No. Once two speakers are paired with PartyBoost, they remember each other. The next time you turn them on, they will automatically reconnect if they are within range. You only need to manually pair them once, or if you want to disconnect them permanently.

What if my JBL speaker has no PartyBoost button and no aux input?

You can only use standard Bluetooth pairing, which means connecting both speakers to your phone through your phone's Bluetooth settings. They will play the same audio but may not stay perfectly in sync. This is the least ideal method but works if the other options are not available on your model.

Can I connect a JBL speaker to another brand of speaker?

PartyBoost only works between JBL speakers. You can connect a JBL speaker to a non-JBL speaker using standard Bluetooth pairing through your phone, or with a cable if both have aux inputs, but they will not use any proprietary pairing technology.