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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
Global
- 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?
Big Sound That Goes Where You Go
If you want a speaker that genuinely fills a space with rich, powerful sound — whether you're in the backyard, at the beach, or out camping — the JBL Xtreme 4 delivers without compromise.
The sound quality here is a serious step up from smaller portable speakers. JBL's AI Sound Boost automatically adjusts the audio to keep things clear and full no matter how loud you push it, so your music always sounds its best. With up to 30 hours of total playtime (including Playtime Boost mode), you're not going to be hunting for a charger halfway through the day. It handles splashes, rain, dust, and all the rough-and-tumble of outdoor life without missing a beat — genuinely built for wherever you take it.
The included shoulder strap makes it easy to carry between spots without any fuss. It's a solid, dependable speaker that feels as good as it sounds, and looks at home just as much on a kitchen bench as it does at a campsite.
Buy This If…
- You want powerful, room-filling sound from a portable speaker
- You spend time outdoors and need something tough and weather-resistant
- All-day battery life matters to you
- You hate fiddling with settings and want great audio automatically
- You're after a speaker that's easy to carry and built to last




