12-Month Warranty Included Details

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JBL Xtreme 4 Portable Wireless Waterproof Speaker, Blue - Certified Refurbished

JBL  |  SKU: JBLXTREME4BLUAM-Z
Sale price $24999 Regular price $39995 37% off new
Certified Refurbished
Certified
Refurbished
12-Month Warranty
1-Year
Warranty
Authorized Seller
Authorized
Seller

Condition: Certified Refurbished

This product has been refurbished by the manufacturer or an authorized third party and tested to meet the manufacturer standards for like-new condition. Learn more

Warranty: 1 Year Warranty

1 Year Warranty Learn more

Free Shipping on Orders $50+

Free shipping with orders over $50.00. 30-day returns. Learn more

Ready to provide your next outdoor adventure with massive JBL Pro Sound, the Xtreme 4 Portable Wireless Waterproof Speaker from JBL in blue, features dual 2.8" woofers, dual 0.7" tweeters, and dual passive radiators. Your music will sound balanced and have benefit of rich, deep bass response; even at high volumes thanks to AI Sound Boost. Experience the great outdoors without worry as you stream your favorite music via Bluetooth. The Xtreme 4 is waterproof, dustproof, and has rugged rubber bumpers to handle bumps and impacts. The huge, replaceable battery can play your music for up to 24 hours, with an extra 6 hours available via a tap of Playtime Boost.

Features

  • 100W of JBL Pro Sound
  • 2 x 2.8" Woofers & 2 x 0.75" Tweeters
  • Dual Passive Radiators
  • Maximize Quality with AI Sound Boost
  • Water/Dustproof with Rubber Bumpers
  • Up to 24 Hours of Playback
  • Use Battery as USB-C Device Power Bank

AI Sound Boost

Using AI Sound Boost, the Xtreme 4 can maximize its already impressive sonic capabilities. AI Sound Boost analyzes the incoming audio signal in real-time, while simultaneously using an AI algorithm to predict the loudspeaker movement and power response. The result is the ability to push the drivers to their maximum capability, fully exploiting dynamic range, maximizing volume and bass, while minimizing distortion.

Use Battery as Power Bank

If your phone or tablet is running low on power, you can use the massive 9444 mAh LiPo battery as a power bank to recharge your device. Simply plug it into the Xtreme 4 via the USB-C port.

Pair for Bigger Sound

If the large soundstage of the Xtreme 4's JBL Pro Sound is somehow not enough, you have the option of pairing it to a second Xtreme 4 speaker for bigger, stereo sound. You can also wirelessly connect the Xtreme 4 to other PartyBoost or Auracast-enabled speakers in order to share music across a wide array of available speakers.

JBL Portable

The JBL Portable app lets you update the Xtreme 4's firmware, unlock new features, access product support, and the built-in EQ. Make custom EQ adjustments or select from one of the EQ presets.

Eco-Friendly

With an eye on sustainability, JBL partially constructed the Xtreme 4 from recycled materials, and packaged it in FSC-certified paper that's printed with soy ink.

Additional Features

  • Included shoulder strap
  • Fast charge for 10 minutes for 2 hours of playback
  • 5 stars: 1 (50%)
  • 4 stars: 1 (50%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
J.B. (Buffalo, US)
Finally, a Speaker That Can Keep Up With Me! (JBL Xtreme 4 Review)

So I just got my hands on the JBL Xtreme 4 in cool blue, and this thing is a confirmed BEAST!
If you're looking for a speaker that can handle anything, all day long - while still sounding amazing...this is it! 👀
THE SOUND – 🤩! Blasted many bass-heavy tracks and the kick you get from the woofers is unmatched and just incredible for a portable speaker. It's got AI Sound Boost which takes it even further with instant punchier and clearer sound, even when you really crank it. 🎛️
You know that feeling when a song just hits right? This speaker does that perfectly! 🔊 ☺️
This thing is super tough...I've taken it to a beach + picnic and afterward wasn't even worried about a spilled drink, dust, or surprise dippp in the lake since - it's IP67 waterproof and dustproof. 💦🥽 Plus that shoulder strap (+bottle opener) is a lifesaver, and makes it super easy to haul around, strap to an e-bike, and FULLY enjoy the warm weather with all five senses. 😎
Battery life is sickkk! I charged it up, and it just kept going. 24 hours is no joke, and there's a "Playtime Boost" that squeezes out a few extra hours. The fact that it also has ample capacity to charge everyone's nearly-dead devices is a total game-changer. 🔋🔌⚡
No more panic! ☠️💀
JBL App is underrated too...you can tweak the sound to exactly how you like it. 🎚️
If you're all about a Bluetooth speaker that simply blows everyone away - every time, takes a beating, and keeps the party going all day and allll night...the JBL Xtreme 4 is absolutely worth investing to your indoor/outdoor setup, and nobody will be disappointed. 💪🙌

K
Kevin Harvey (Sanford, US)
Great deal.

Everything seems to work. Power light doesn't turn blue once connected. It says white along with the Blue Tooth button. It still connects and plays fine. Not sure if that can be fixed. Not a big deal

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What does "certified refurbished" actually mean?

A refurbished product is one that was returned and then restored to as close to like-new as possible—including replacement parts and updated software where needed. Every refurbished product we sell is certified, meaning it's been restored by the manufacturer or an authorized partner and tested to original standards. Want the full breakdown? Read Refurbished, Renewed, Used… What's the Difference?

Are all refurbished items in equally good condition?

Yes. Every refurbished refurbished product is cleaned and tested to come as close to like-new as possible. We also carry new condition products which are unopened and brand new!

Do your products come with a warranty?

They do. Every refurbished product is backed by our 12-Month Refurb Warranty, and many new products carry longer coverage—1–2 years, and in some cases a Lifetime Warranty. Need specifics on your item? Contact us and we'll help.

Do you accept returns?

You can return most items within 30 days of delivery for a full refund. Items may be opened and inspected and still qualify, as long as they're returned in the same condition you received them and include all original accessories.

Do I have to pay for return shipping?
If the return is due to our error—such as an incorrect or defective item—we cover the return shipping cost.

When will I get my refund?
Refunds are typically issued within 5–14 business days after we receive your returned item.