The Bose SoundLink Flex (2nd Gen) is a hand-sized, silicone-wrapped Bluetooth speaker, and the SoundLink Flex 2nd Gen Black is its most understated colour. It is rated IP67 against dust and water, floats if it falls into a pool, adjusts its tuning to the way it is placed with PositionIQ, and plays for up to 12 hours at 50% volume. A utility loop lets you hang it from a bag, a tent or a bike handlebar, and a built-in microphone turns it into a speakerphone.
Table of Contents
Sound and PositionIQ
Bose describes the SoundLink Flex as a speaker with deep, clear sound for its size, but it does not publish a wattage or frequency-response figure, so judge it by what it is built for: a table, a desk, a tent or a poolside lounger, rather than a large party. PositionIQ senses whether the speaker is standing upright, lying on its back or hanging from its loop, and adjusts the audio output to suit. You do not change any setting; the SoundLink Flex 2nd Gen Black retunes itself when you move it. The Bose app adds an adjustable EQ if you want more or less bass.
Battery: 12 hours, with a condition
Bose rates battery life at up to 12 hours, measured with Bluetooth A2DP audio at 50% volume, at 20–25°C, with the default EQ and no external devices charging. Louder playback and heat shorten that; a speaker left in a hot car in a UAE summer will not reach the rated figure. The SoundLink Flex 2nd Gen Black charges through USB-C in about 4 hours from empty with a 5 V/1.5 A (7.5 W) supply. The box includes a USB-C to USB-A cable but no power adapter, so use a phone charger you already own.
IP67, it floats, and it is built for outdoors
The IP67 rating covers dust and water, and Bose says the speaker can withstand accidental drops in water for up to 30 minutes. It floats, but Bose points out that it is not designed for use in water, so fish it out rather than leaving it to drift, and rinse it after salt or chlorinated water. The silicone body resists knocks, and Bose lists the materials as aluminium, fabric, nylon, plastic, silicone and steel. At about 20.1 × 9.0 × 5.2 cm and 0.59 kg, the SoundLink Flex 2nd Gen Black fits the side pocket of a backpack.
Multipoint, Shortcut button and pairing
Bluetooth 5.3 keeps a strong connection within about 30 ft, roughly 9 m, and multipoint keeps two source devices paired so you can switch between them. The built-in microphone of the SoundLink Flex 2nd Gen Black lets you answer and end calls with the play/pause button. A programmable Shortcut button links two compatible speakers by default, and in the Bose app you can set it to start Spotify or reach your voice assistant. Two compatible speakers play in Stereo Mode with separate left and right channels or in Party Mode for a fuller sound, and SimpleSync joins Bose smart speakers and soundbars.
Why choose Black
Black is the safest colour for a speaker that goes everywhere. Sand, sunscreen and fingerprints show far less on dark silicone than on Fog Grey or Petal Pink, so the SoundLink Flex 2nd Gen Black keeps looking clean after months in a beach bag or a car door pocket, and it looks just as at home on an office desk or a bookshelf. If one speaker is shared by the whole family, black is the choice nobody objects to, and it matches most other Bose speakers if you plan to use Stereo or Party Mode. The second speaker does not have to be the same colour.
Who This Is Not For
The SoundLink Flex 2nd Gen Black is not a garden-party speaker: Bose suggests it for groups of up to around 10 people and publishes no power figure. There is no 3.5 mm AUX input, so it cannot be wired to an older player or a TV, it cannot charge your phone, and no power adapter is included. Bose does not list codec support beyond standard Bluetooth on its product page.
Ordering from Totot
Totot sells the SoundLink Flex 2nd Gen Black brand-new and genuine in its sealed box, backed by a 1-year warranty from Totot. It reaches any emirate within 3 business days at most, with free delivery on orders from AED 300, with cash on delivery or instalments via Tabby and Tamara. Items that arrive defective or not as ordered can be returned within 14 days, and any shipping damage should be reported within 48 hours of delivery. Browse more in our Portable Speaker range, or see the official Bose SoundLink Flex (2nd Gen) page.
SoundLink Flex 2nd Gen Black Specifications
- Model: Bose SoundLink Flex Portable Speaker (2nd Gen)
- Colour: Black
- Sound: PositionIQ orientation tuning; adjustable EQ in the Bose app; output power not published
- Battery: Up to 12 hours (Bose test: A2DP, 50% volume, 20–25°C, default EQ)
- Charging: USB-C; about 4 hours with a 5 V/1.5 A (7.5 W) supply; adapter not included
- Bluetooth: 5.3, range up to 9 m (30 ft), multipoint with two source devices
- Water and dust: IP67; floats; withstands accidental drops in water for up to 30 minutes
- Microphone: Built-in, for calls
- Shortcut button: Programmable: speaker linking (default), Spotify, voice assistant
- Multi-speaker: Stereo Mode and Party Mode with a compatible Bose speaker; SimpleSync
- Dimensions: About 20.1 × 9.0 × 5.2 cm
- Weight: 1.291 lb (about 0.59 kg)
- Materials: Aluminium, fabric, nylon, plastic, silicone, steel
- In the box: Speaker, USB-C to USB-A cable, safety sheet
- Warranty: 1-year warranty from Totot
SoundLink Flex 2nd Gen Black FAQ
How long does the SoundLink Flex 2nd Gen Black battery last?
Up to 12 hours at 50% volume and 20–25°C, according to Bose; louder playback shortens it.
Does it float?
Yes. It floats, but Bose says it is not designed for use in water.
Is a charger included?
No. The box includes a USB-C to USB-A cable only.
Can I pair the SoundLink Flex 2nd Gen Black with a speaker in another colour?
Yes. Two compatible speakers play in Stereo or Party Mode whatever their colour.
Does it have an AUX input?
No. Bose lists no 3.5 mm input; it connects over Bluetooth.
Will black show sand and sunscreen?
No, far less than the light colours; a rinse with fresh water cleans it.
Is it genuine?
Yes. We sell the genuine Bose SoundLink Flex 2nd Gen Black, brand-new in its sealed box.
How long does delivery take?
3 business days at most across the UAE. Orders from AED 300 ship free, and the checkout page shows any current fee for your order.
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