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Key Features
- Next level massive JBL Pro Sound
- Up to 24 hours of playtime plus 6 hours with Playtime Boost
- Convenient shoulder strap
- AI Sound Boost
- Waterproof and dustproof
JBL Xtreme 4 Portable Waterproof Speaker, JBLXTREME4BLKAS

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 AuracastTM 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. Up to 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.
Key Features:
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.
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 AuracastTM
Want even bigger JBL Pro Sound? Stereo pair two Xtreme 4 speakers for a wider sound stage. For your biggest parties, multiple JBL speakers can be connected wirelessly using AuracastTM. You can also pump up your party with JBL PartyBoost by using the JBL Portable app to pair the Xtreme 4 with other JBL PartyBoost-compatible speakers.
Convenient shoulder strap
The speaker can be carried on the shoulder or can be adjusted as crossbody, whatever your style or the mood.
Specifications
Description
- Search Snippet: The JBL Xtreme 4 portable speaker offers 24-hour battery life with IP67 waterproof rating.
Global
- EAN: 1200130008214
- Model Number: JBLXTREME4BLKAS
General
- Colour: Black
Features
- Dust Resistant: Yes
- Rechargeable Battery: Yes
- Waterproof: Yes
Size
- Sub Woofer Size (In): 2x75
- Tweeter Size (In): 2x0.75
Battery
- Battery Type: Li-ion polymer 68Wh
- Charge Time (Hrs): 3.5
- Estimated Battery Life (h): 24
- Playback Time (Hrs): 6
- Signal-To-Noise Ratio (Db): 80
- Total Output Power (W): 2 x 20W RMS woofer + 2 x 15W RMS tweeter
Connectivity
- Bluetooth: Yes
- Bluetooth Version: 5.3
- USB: Yes
Bluetooth
- Bluetooth Transmitter Frequency Range: 2400MHz - 2483.5 MHz
- Bluetooth Transmitter Power: ≤ 12dBm (EIRP)
- Supported Codecs: A2DP V1.3, AVRCP V1.6
Energy Specification/Power
- Frequency Response (Hz): 44
Dimensions
- Depth: 141mm
- Height: 149mm
- Width: 297mm
Weight
- Weight (Kg): 2.1
In The Box & Warranty
- Included: 1 x JBL Xtreme 4, 1 x PD adaptor (plug type varies by region), 1 x Quick start guide, 1 x Warranty Card/Safety sheet
- Warranty (Years): 1
Manuals
Why Buy?
Loud, clear sound that lasts all day outdoors
The JBL Xtreme 4 portable bluetooth speaker delivers powerful audio that stays crisp at maximum volume, making it ideal for backyard parties, beach trips, and camping adventures where you need music that everyone can hear clearly.
This speaker transforms outdoor gatherings with deep bass and sharp highs that cut through wind and crowd noise. AI Sound Boost automatically optimises audio performance in real time, so your music always sounds balanced without any manual tweaking. With 24 hours of battery life plus an extra 6 hours from Playtime Boost, you can keep the soundtrack going from morning barbecues through late-night gatherings without hunting for power outlets.
The IP67 waterproof rating means sudden rain showers, pool splashes, and dusty camping conditions won't silence your music. The adjustable shoulder strap lets you carry it comfortably between locations, while the rugged design handles bumps and drops. You can pair two speakers for stereo sound or connect multiple JBL speakers wirelessly to fill larger outdoor spaces with synchronised audio.
Buy this if…
- You host outdoor parties and need loud, clear sound
- You want all-day battery life without charging interruptions
- Weather resistance matters for your outdoor activities
- You value easy portability with comfortable carrying options
- You plan to expand your setup with multiple connected speakers




