Controls are located on the top of the speaker.

Press the Power button 
The battery light glows solid white.

The auto-off timer conserves the battery when the speaker is operating on battery power. The speaker switches off when audio has stopped and buttons have not been pressed for 20 minutes.
NOTE: To adjust the time it takes for your speaker to automatically power off, use the Bose Connect app.
Disable the auto-off timer
Press and hold H and the Multi-function button
simultaneously. You hear “Auto-off disabled.”
Repeat to re-enable the auto-off timer.
TIP: You can also disable the auto-off timer using the Bose Connect app.
Media playback and volume functions

Call functions

for 1 second.
for 1 second.
twice quickly.
for 1 second.Voice prompt notifications
Your speaker identifies incoming callers who are saved in your contact list.
To disable this feature
NOTE: Disabling voice prompt notifications also disables voice prompts.
The speaker microphone acts as an extension of the microphone in your mobile device. Using the Multi-function button
on the speaker, you can access the voice control capabilities on your device to make/take calls, or access your voice assistant to play music, tell you the weather, give you the score of a game and more.
Press and hold
to access voice control on your device. You hear a tone that indicates voice control is active.

Charge your speaker using the USB-C® charging cable (wall-charger not provided).

While charging, the battery light blinks white. When the battery is fully charged, the battery light glows solid white

CAUTION: Do NOT attempt to charge the speaker while it is wet. Doing so may cause damage to the speaker.
Charging time
Allow up to 4 hours to fully charge the battery.
With typical usage, the battery lasts up to 12 hours. Battery performance varies with the content played and volume at which it’s played.
Hear the battery level
Each time you power on the speaker, a voice prompt announces the battery level. When the speaker is in use, a voice prompt announces if the battery needs to be charged.
Voice prompts must be enabled to hear the battery level.
To hear the battery charge level while using your speaker, press and hold the Power button
until you hear a voice prompt.
NOTE: To visually check the battery, press and hold
while viewing the battery light see .
When your speaker battery is depleted (0%), or your speaker is unplugged and unused for more than three days (with a remaining charge of less than 10%), it enters battery protection mode. To reactivate your speaker, connect it to a wall charger or computer that is powered on.
When not in use, store your speaker in a cool place.
CAUTION: Do NOT store your speaker for extended periods when fully charged or with a remaining charge of less than 10 percent.
The Bluetooth and battery lights are located on the top of the speaker.
Shows the connection status of a mobile device

Shows the battery charge level.

Voice prompts guide you through the Bluetooth connection process, announce the battery level and identify connected devices. You can customize voice prompts using the buttons on your speaker.
TIP: You can also easily manage voice prompts using the Bose Connect app.
When you power on the speaker for the first time, the voice prompts are in English.
and - simultaneously until you hear the voice prompt for the first language option.
to select.Press and hold - and + simultaneously until you hear “Voice prompts off.”
NOTE: Repeat to re-enable voice prompts.
CONNECT YOUR MOBILE DEVICE USING THE BOSE CONNECT APP (RECOMMENDED)
With your speaker powered on, download the Bose Connect app and follow the on-screen connection instructions.

Once connected, you hear “Connected to <mobile device name> ” and the Bluetooth light glows solid white.
CONNECT USING THE BLUETOOTH MENU ON YOUR MOBILE DEVICE
1. With your speaker powered on, press and hold the Bluetooth button
until you hear “Ready to connect” and the Bluetooth light blinks blue.

2. On your device, enable the Bluetooth feature.
NOTE: The Bluetooth feature is usually found in the Settings menu.
3. Select your speaker from the device list.

Once connected, you hear “Connected to ,” and the Bluetooth light glows solid white.
NOTE: Look for the name you entered for your speaker in the Bose Connect app.
DISCONNECT A MOBILE DEVICE
Disable the Bluetooth feature on your device.
TIP: You can also disconnect your device using the Bose Connect app.
RECONNECT A MOBILE DEVICE
When powered on, the speaker tries to reconnect with the two most recently-connected devices.
NOTE: The devices must be within range (30 ft or 9 m) and powered on.
For a more immersive music experience, you can pair your Bose SoundLink Flex speaker with another Bose Bluetooth speaker and play the same song from both speakers. Two speakers can play together in the following modes:
You can set this up using the Bose Connect app (recommended) or the speaker control buttons.
Compatible products
You can pair your Bose SoundLink Flex speaker with the following speakers:
If you are unable to access the Bose Connect app, follow the instructions below.
Party mode
and + simultaneously.
4. Release the buttons when you hear “Press the Bluetooth and volume down buttons simultaneously on a second Bose device.”
5. On the other speaker, press and hold the Bluetooth button
and - simultaneously.

6. Release the buttons when the speaker emits a tone.
After about 10 seconds, you hear “Party mode” from both speakers simultaneously. Party mode is enabled, and you are now able to play audio in unison using your mobile device.
7. For an optimal experience, position your speakers:
NOTE: Performance may vary based on mobile device, distance, and environmental factors.
Stereo mode
1. Configure your speakers for Party mode.
2. On one speaker, press the Bluetooth button
and + simultaneously.
3. Release the buttons when you hear “Stereo mode.”
You hear “Left” from the left speaker and “Right” from the right speaker.
Stereo mode is enabled, and you are now able to play audio in stereo using your mobile device.
4. For an optimal experience, position your speakers:
On either speaker, press
and - simultaneously.
Power off the second speaker.
With Bose SimpleSync™ technology, you can pair your Bose SoundLink Flex speaker with a Bose Smart Speaker or Bose Smart Soundbar to listen to the same song in two different rooms at the same time.
NOTES:
Walls and construction materials can affect reception.
Compatible products
You can pair your Bose SoundLink Flex speaker with any Bose Smart Speaker or Bose Smart Soundbar.
Popular compatible products include:
New products are added periodically. For a complete list and more information, visit: worldwide.Bose.com/Support/Groups
Pair using the Bose Music app
NOTES:
Power on your Bose SoundLink Flex speaker. Your Bose SoundLink Flex speaker tries to connect to the two most recently-connected Bluetooth devices, including your Bose Smart Speaker or Bose Smart Soundbar.
NOTES:
Your speaker may require periodic cleaning.
If you experience problems with your speaker:
If you could not resolve your issue, see the table below to identify symptoms and solutions to common problems. If you are unable to resolve your issue, contact Bose customer service.
No power (battery)
Speaker does not connect with mobile device
Connect a different device.
Clear the speaker pairing list. Connect again.
No sound
to hear the connected device. Make sure you are using the correct device.Poor sound quality
Speaker does not charge
Microphone is not picking up sound
Mobile device not responding to button presses
Speaker doesn’t pair with a Bose Bluetooth speaker manually
Speaker doesn’t pair with a Bose Smart Speaker or Soundbar
Speaker doesn’t reconnect to a previously-paired Bose Smart Speaker or Soundbar
Delayed audio when paired with a Bose Smart Speaker or Soundbar
Factory reset clears connected devices and language settings from your speaker and returns it to the original factory settings.
1. Power on your speaker.
2. Press and hold the Power button
for 10 seconds. The speaker powers off.
3. Press
.
The Bluetooth light glows blue, and you hear “Ready to connect. To start setup, download the Bose Connect app”