Bose SoundLink Flex Portable Bluetooth Speaker (2nd Gen) — Blue Dusk, IP67 Waterproof, Hi‑Fi Sound, 12‑Hour Battery

The Bose SoundLink Flex (2nd Gen) is a palm-sized portable Bluetooth speaker that delivers surprisingly powerful, high-fidelity sound with IP67 protection and up to 12 hours of battery life.

Compact and rugged, this Bose speaker is built for life outside the house. It combines deep, balanced audio and PositionIQ orientation sensing with a silicone-wrapped exterior, a built-in nylon utility loop for carrying or clipping, and Bluetooth 5.3 connectivity. The result is a versatile speaker that works on trails, at the pool, or on the patio without needing careful handling.

How loud and clear does the SoundLink Flex play for its size?

Despite its small footprint, the Flex produces a full, balanced sound profile with pronounced bass and clear mids that fill small to medium outdoor spaces. Bose tuning focuses on natural, high-fidelity output so vocals and instruments stay defined at higher volumes without harshness.

• High-fidelity drivers tuned for clarity and punch
• Balanced bass response uncommon in similarly small speakers
• Stereo pairing option to create wider, room-filling sound

Can I use this speaker in water, sand, or rough conditions?

The SoundLink Flex meets IP67 standards, making it both waterproof and dustproof; it even floats, so accidental drops in water won’t sink your music. The silicone-wrapped housing and reinforced internals are engineered to resist drops, shocks, crushing, and rust from outdoor exposure.

• IP67 rating for dust and immersion protection
• Floatable design for safe pool and beach use
• Durable silicone exterior absorbs impacts and resists corrosion

What battery life and connectivity can I expect when I take it on the go?

Battery life delivers up to 12 hours of typical listening per charge, enough for a day trip or a long session by the water; at maximum volume, expect shorter playtime. Bluetooth 5.3 provides stable connections and multipoint support so two devices can stay paired, and range extends to about 30 feet under normal conditions.

• Up to 12 hours of typical play time per charge
• Bluetooth 5.3 for improved stability and range
• Multipoint pairing to switch between two devices easily

How do I customize sound and use extra features?

The Bose Music app lets you tweak the equalizer, check battery status, assign shortcuts, and manage paired devices from your phone. PositionIQ automatically adjusts audio based on whether you stand, lay, or hang the speaker, so you’ll get optimized sound without manual setup.

• App-based EQ and shortcut customization
• PositionIQ orientation sensing for optimal playback
• Pair two compatible Bose speakers for Stereo or Party Mode

Who is this for? The Bose SoundLink Flex (2nd Gen) is ideal for listeners who want premium audio in a truly portable, weatherproof package — hikers, beachgoers, backyard hosts, and commuters who value durability and easy setup. If you need a small speaker that balances great sound, outdoor resilience, and simple app control, the Flex delivers a well-rounded solution without sacrificing portability.