Bose SoundLink Flex Portable Bluetooth Speaker (2nd Gen) User Manual

1. Product Overview

The Bose SoundLink Flex Portable Bluetooth Speaker (2nd Gen) is engineered to deliver surprisingly big, bold sound in a compact, highly portable design. Built for adventure, this speaker is rigorously tested to ensure durability and performance in various environments.

Key Features:

• High-Fidelity Audio: Experience clear, balanced sound with deep bass.
• Portable Design: Small enough to fit in your hand, clip to a bag, or pack easily. Features a built-in nylon utility loop for convenient carrying.
• Durable & Rugged: IP67-rated for water and dustproof performance. Designed to withstand drops, crushing, shocks, and rust. It even floats!
• Long Battery Life: Enjoy up to 12 hours of playtime at typical listening levels.
• Advanced Bluetooth 5.3: Ensures a strong, continuous connection up to 30 feet away. Supports multipoint technology for connecting to multiple devices simultaneously.
• PositionIQ Technology: Automatically adjusts the speaker's performance based on its orientation (standing, lying, or hanging) to provide optimal sound.
• Bose App Control: Customize settings, adjust EQ, manage Bluetooth connections, and set shortcut functions via the Bose app.
• Speaker Link: Link two compatible Bose speakers for Stereo Mode (left/right channels) or Party Mode (bigger, bolder sound).

2. Package Contents

Ensure all items are present in your product packaging:

• Bose SoundLink Flex (2nd Gen) Bluetooth Speaker
• USB Type-C cable

3. Setup Guide

3.1 Charging the Speaker

Before first use, fully charge your SoundLink Flex speaker. Connect the included USB Type-C cable to the speaker's charging port and to a USB power source. A full charge takes approximately 4 hours.

3.2 Powering On/Off

To power on the speaker, press the Power button () located on the top panel. You will hear an audible prompt indicating the battery level and readiness to connect. To power off, press and hold the Power button until the speaker powers down.

3.3 Bluetooth Pairing

Upon powering on for the first time, the speaker will automatically enter Bluetooth pairing mode. The Bluetooth indicator light will blink blue. On your device (smartphone, tablet, etc.), enable Bluetooth and select "Bose SoundLink Flex" from the list of available devices. Once connected, you will hear an audible confirmation.

To pair with a new device or re-enter pairing mode, press and hold the Bluetooth button () until the indicator blinks blue.

4. Operating Instructions

4.1 Physical Controls

The SoundLink Flex features intuitive controls on its top panel:

• Power Button: Turns the speaker on or off.
• Bluetooth Button: Initiates Bluetooth pairing mode.
• Volume Buttons (+/-): Adjusts the playback volume.
• Multi-function Button (•••):
• Press once to Play/Pause.
• Press twice to skip to the next track.
• Press three times to skip to the previous track.
• Press and hold to activate your device's voice assistant (configurable via Bose app).

Image: Top view of the Bose SoundLink Flex speaker, highlighting the power, Bluetooth, multi-function, and volume control buttons.

4.2 Bose App Functionality

Download the Bose app for enhanced control and customization of your SoundLink Flex speaker. The app allows you to:

• View battery life.
• Adjust equalizer (EQ) settings for personalized sound (Bass, Mid, Treble adjustments, and presets like Bass Boost/Reducer, Treble Boost/Reducer).
• Customize the shortcut button function (e.g., activate voice assistant, launch Spotify, or initiate Speaker Link).
• Manage connected Bluetooth devices.

4.3 Speaker Link (Party Mode / Stereo Mode)

Enhance your audio experience by linking two compatible Bose speakers. This can be configured for Party Mode (simultaneous playback for louder sound) or Stereo Mode (left and right channels for immersive stereo audio).

To link speakers, use the Bose app and select the "Speaker Link" option, or configure the shortcut button on your speaker to initiate this process. Follow the in-app instructions to connect your second speaker.

4.4 PositionIQ Technology

The SoundLink Flex features PositionIQ technology, which automatically detects the speaker's orientation and adjusts the audio output to ensure optimal sound quality, whether it's standing upright, lying flat, or hanging from its utility loop.

5. Maintenance and Care

The SoundLink Flex is designed for durability with its IP67 rating, making it waterproof and dustproof. To maintain its condition:

• Cleaning: Wipe the speaker with a soft, damp cloth. Avoid using solvents or chemicals.
• Water Exposure: While waterproof, ensure the USB-C port is dry before charging to prevent damage.
• Storage: Store in a cool, dry place when not in use for extended periods.

6. Troubleshooting

Common Issues and Solutions:

• No Power: Ensure the battery is charged. Connect the speaker to a power source using the USB-C cable.
• Cannot Pair Bluetooth: Ensure the speaker is in pairing mode (blinking blue light). Check your device's Bluetooth settings and try re-pairing. If issues persist, "forget" the speaker from your device's Bluetooth list and try again.
• No Sound/Low Volume: Check the volume levels on both the speaker and your connected device. Ensure the speaker is not muted.
• Sound Quality Issues: Try adjusting the EQ settings in the Bose app. Ensure the speaker is placed on a stable surface and not obstructed.
• Intermittent Connection: Ensure your device is within the 30-foot Bluetooth range. Avoid physical obstructions between the speaker and your device.

7. Specifications

8. Warranty and Support

The Bose SoundLink Flex Portable Bluetooth Speaker (2nd Gen) comes with a Limited Warranty. For detailed warranty information and support, please refer to the official user manual PDF or visit the Bose support website.

Official User Manual (PDF): Download PDF