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JBL Xtreme 4 Portable Waterproof Speaker with Massive JBL Pro Sound & Convenient Shoulder Strap – Black

In Stock Incl. VAT Free Delivery Available Condition: New

JBL Xtreme 4 Portable Waterproof Speaker with Massive JBL Pro Sound & Convenient Shoulder Strap

It’s time to live loud! The JBL Xtreme 4 portable waterproof speaker delivers next-level massive JBL Pro Sound with amazing dynamics, even at top volume, thanks to two powerful woofers and two tweeters. Dual pumping JBL passive radiators give you deeper bass that moves you. Want to take your music outside? The handy shoulder strap makes it easy, while the rugged rubber bumpers and IP67 waterproof and dustproof rating mean that a sudden downpour or a dunk in the lake won’t stop the fun. When it’s time to create an even bigger audio experience, pair two Xtreme 4s for stereo sound. Or for your next party, use Auracast to connect the Xtreme 4 with any compatible JBL portable speakers, so your friends lounging poolside will vibe to the same playlist as the ones chatting indoors. 24 hours of playtime and a convenient power bank for your device mean you won’t have to recharge until morning. All this, plus it’s made with recycled plastic and recycled fabric. The JBL Xtreme 4 brings thrilling sound with you—everywhere.

Features:

NEXT LEVEL MASSIVE JBL PRO SOUND
Two woofers, two powerful drivers and dual pumping JBL Bass Radiators effortlessly deliver dynamic, immersive sound with deeper bass and plenty of detail. You’ll get lost in the music wherever you are.

UP TO 24 HOURS OF PLAYTIME PLUS 6 HOURS WITH PLAYTIME BOOST
Your listening adventures can last all day long. Take the JBL Xtreme 4 with you from room to room, out to your backyard party, or off to the beach. With up to 24 hours of battery life, you can play music ’til the sun goes down—and comes back up again—before you’ll need a recharge. Simply tap Playtime Boost to prolong the playtime, adding up to 6 hours to your battery life. It tunes and optimizes the performance for louder and crisper sound.

CONVENIENT SHOULDER STRAP
The speaker can be carried on the shoulder or can be adjusted as a crossbody, whatever your style or the mood. It also features a built-in bottle opener.

JBL PORTABLE APP
Use the JBL portable app to receive updates, get product support, and unlock features, all straight from your phone. Fine-tune your sound with multiple EQ presets options. Or use fully customizable equalizer to adjust highs, mids, and lows – so your music is just right for you.

MADE IN PART WITH RECYCLED MATERIALS
The JBL Xtreme 4 incorporates post-consumer recycled plastic and fabric for the speaker grille. It’s also packaged in FSC-certified paper printed with soy ink.

WATERPROOF AND DUSTPROOF
The JBL Xtreme 4’s IP67 waterproof and dustproof rating ensures this portable speaker can handle almost any environment, from a poolside party to a seaside picnic.

AI SOUND BOOST
Get the most out of your speaker. AI Sound Boost analyzes the incoming signal in real time while simultaneously using an AI algorithm to predict loudspeaker movement and power response. It pushes the driver to its maximum capability, fully exploiting the dynamic range for better and more powerful sound. It also reduces distortion even at high volume, maximizing the bass output and overall loudness.

MULTI-SPEAKER CONNECTION BY AURAPAST
Want even bigger JBL Pro Sound? Stereo pair two Xtreme 4’s for a wider sound stage. For your biggest parties, connect multiple JBL speakers wirelessly using Auracast. *The Xtreme 4 can also connect with PartyBoost-enabled speakers.

POWER UP WITH THE BUILT-IN POWERBANK
Don’t put the good times on pause. The JBL Xtreme 4’s built-in powerbank lets you charge your devices without taking a break from the music.

REPLACEABLE BATTERY*
Want even more life out of your speaker? Extend the lifespan of your speaker by replacing the rechargeable battery. *Replaceable battery sold separately.

FAST CHARGE
Need a quick boost to see the party through? Ten minutes on the charger gets you another two hours of music.

£285.61

FAQs

How long will the discounts last?

The current discounts are valid until Aug 31, 2026, or while stocks last. Our prices are lower because we work with trusted suppliers, purchase in volume, and operate with a streamlined online model that reduces overhead costs.

All products are 100% original, brand new, and delivered in factory-sealed packaging.

We focus on fair pricing and transparency, passing our cost savings directly to our customers.

Is this grey market / grey import? Is the product intended for the EU and UK?

No, this is not grey market merchandise. All products are 100% original, brand new, properly packaged, and covered by warranty.

Yes, the products are intended for customers in the EU and UK and comply with all applicable regional requirements.

How long will it take to receive my order?

Order processing begins after payment is confirmed and typically takes 0–1 business days.

Once shipped, delivery usually takes 5–10 business days, excluding weekends and public holidays.

For more detailed information, please refer to our Terms & Conditions and Shipping Policy.

Massive Sound. Rugged Design. Built for the Outdoors.

The JBL Xtreme 4 is a powerful portable Bluetooth speaker designed to deliver bold, room-filling sound wherever your adventures take you. Featuring JBL Pro Sound with deep bass, clear mids, and crisp highs, the Xtreme 4 transforms any space—indoors or outdoors—into an instant party.

Engineered for life on the move, the Xtreme 4 features a rugged, waterproof, and dustproof design, making it ideal for beaches, poolside, camping trips, and backyard gatherings. The included adjustable shoulder strap adds convenience and comfort, allowing you to carry powerful sound hands-free.

With an extended long-lasting battery, the JBL Xtreme 4 keeps the music playing for hours, while Bluetooth connectivity ensures fast, stable wireless pairing. PartyBoost compatibility allows you to connect multiple JBL speakers for an even bigger, more immersive sound experience.

Built tough and tuned for impact, the JBL Xtreme 4 is the perfect companion for music lovers who want powerful audio without limits.


Key Features

🔊 Massive JBL Pro Sound
Powerful audio with punchy bass and crystal-clear detail.

🌊 Waterproof & Dustproof Design (IP67)
Built to handle splashes, sand, and outdoor adventures.

🎒 Convenient Shoulder Strap
Carry your speaker comfortably wherever you go.

🔋 Long Battery Life
Enjoy hours of continuous playback on a single charge.

📶 Bluetooth Wireless Streaming
Quick, stable connection with smartphones and tablets.

🔗 PartyBoost Compatibility
Pair with other JBL speakers for bigger sound.

🛡️ Rugged Portable Build
Durable construction designed for active lifestyles.


📌 Specifications

🔊 Speaker Type: Portable Bluetooth Speaker
📶 Connectivity: Bluetooth
🔋 Battery Life: Long-lasting playback (varies by volume)
🌊 Water & Dust Protection: IP67
🔗 Multi-Speaker: PartyBoost compatible
🎒 Portability: Shoulder strap included
🎵 Sound Profile: JBL Pro Sound with enhanced bass
🔌 Charging: USB-C
🎨 Colour: Black

Multi-speaker connection by Auracast

Want even more roaring Original JBL Pro Sound? Stereo pair two speakers for a wider sound stage. For your biggest events, multiple JBL Auracast-enabled PartyBoxes can be connected wirelessly using Auracast.

Xtreme 4 Strap

JBL Xtreme 4

Convenient shoulder strap

The speaker can be carried on the shoulder or can be adjusted as crossbody, whatever your style or the mood.

Xtreme 4 recycled materials

JBL Xtreme 4

Made in part with recycled materials

The JBL Go 4 incorporates post-consumer recycled plastic and fabric for the speaker grille. It’s also packaged in FSC-certified paper printed with soy ink.

Xtreme 4 waterproof

JBL Xtreme 4

Waterproof and dustproof

The JBL Xtreme 4’s IP67 waterproof and dustproof rating ensures this portable speaker can handle almost any environment, from a poolside party to a seaside picnic.

Xtreme 4 battery
SKU: JBLXTREME4BK Category: