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JBL XTREMEBLK Portable Wireless Speaker - Black

Product Specification

Key Information

Dimensions (H)12.6 x (W)28.3 x (D)12.2
Audio Power 40 Watt
Built-In Microphone Yes
CD Player No
Digital Tuner No
Energy Efficiency Class B
High-res Audio (FLAC) No
Internet Connection No
Manufacturer Warranty 2 Year
Power Source Mains and Battery
Product Description Portable Bluetooth Speaker
Radio Tuner No
USB Input Yes - Service Only


Android Via Bluetooth
iOS Via Bluetooth
Mac Via Bluetooth
Windows Via Bluetooth


3.5mm Line In 1
Analog RCA L/R Audio Input 0
Analog RCA L/R Audio Output 0
Digital Coaxial Input 0
Digital Optical Input 0
Ethernet (LAN) Input No
USB Output 0

Features We Love

Portable Speaker Yes
Water Resistant Yes

Power and Battery

Battery Life Up to 15 Hours
Battery Type Lithium Ion
Rechargeable Battery Yes

Product Detail

Brand JBL
Category Wireless Speakers
Colour Black
Dimensions (H)12.6 x (W)28.3 x (D)12.2

Smart Technology

Multiroom App Available No
Smartphone Control Yes

Sound Technology

3D Sound No
Dolby Sound Technology No
Impedance 6
MQA Audio Compatible No
Number of Channels 2
Number of Internal Speakers 4
Speaker Configuration Main unit x 1, Speakers x 2
Speaker Layout 4 Speakers
Subwoofer No
System Speaker Frequency Response 70 - 20000 Hz
Tweeter 35
Woofer 63

Speaker Measurements

Main Unit Dimensions 126 x 283 x 122 mm (HxWxD)
Main Unit Weight 2.112 Kg

System and Features

Auto Power Off Yes
DLNA Certified No
Energy Saving Mode No
Expandable System No
Main Unit Wall Mountable No
Mesh Networking No
Standby Power Consumption 1 Watt
USB Charging No

What's In The Box

Manual / Quick Guide Yes
Other Accessories Included Charger pack/Euro 2 pin plug/carry strap
Power Cable Yes
Remote Control No
USB Charging Cable No

Wireless Connectivity

AirPlay No
Bluetooth Yes
Dual Band WiFi No
Google Cast No
Multiroom Compatible No
NFC (Near Field Communication) No
WiFi No
WiFi Direct No

JBL XTREMEBLK Portable Wireless Speaker - Black

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  • Black
  • Red
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Delivery Delivery from Wed 29th Mar Delivery from tomorrow, 29th March From tomorrow, 29th March From tomorrow, Wed 29th March


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  • Your driver will attempt to call you when they're on the way.

△ The earliest delivery date may vary based on your postcode.

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Finance From £7.35 a month (APR 19.9%)


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We've got a couple of simple payment options to help you spread the cost. It takes just 10 minutes to apply and we'll give you a decision straight away. We offer:

  • 12-48 month finance agreements
  • Buy Now Pay Later - this lets you take a 6-12 month payment holiday.

Key Features

  • Portable speaker is perfect for enjoying music outdoors
  • Up to 15 hours battery life
  • Splashproof fabric protects speaker from rain or spills
  • Control the system with your smartphone
  • Bluetooth enabled for wireless connectivity

Product Overview

Take the music with you thanks to this black wireless speaker from JLB, designed to be portable so you can take the party with you, wherever you go. It has a 15 hour battery life too, so you can keep your music playing all night long. This model is even splash resistant, allowing you to use it in the rain or the bathroom, so you can sing along to in the shower. It can be controlled by almost all smart phones and by Bluetooth, so you can take control and be the DJ.

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Questions & Answers

Features we love

Music wherever you go

This portable speaker is the perfect choice if you want to listen to music wherever you are. It relies on a battery rather than an external power source, which means you can take it anywhere and simply connect it wirelessly to your smartphone or tablet via Bluetooth. Perfect for days in the park, outdoor parties or any room in the home, it delivers a great, full sound that everyone can enjoy.

Extra Long Battery Life

This portable wireless speaker has a truly impressive 15 hour battery life. It uses a durable, rechargeable battery which is built into the speaker, so you can enjoy your music for a much longer period of time. This means it has more than enough charge to keep the music flowing all day or the party going all night, without needing to be recharged.

Splash proof resistance

This speaker is water resistant, thanks to its innovative, splash proof design. This means there’s no need to worry about rain if the weather turns bad, and any accidental spills at the party or splashes by the pool will never be a problem.

Control with your smartphone

This portable speaker can be controlled by your Smartphone via Bluetooth. By selecting the speaker in your smartphone’s settings, you can instantly pair it with your device via Bluetooth. Once connected, you can be your own DJ by browsing artists, skipping tracks and cranking up the volume – everything you need to really get the party started.

Customer Reviews

5.0 / 5 2 Reviews
100% would recommend to a friend
Showing 2 of 2 reviews
Product Tester.

A customer who has been given a product to use and keep in exchange for an honest review.

Best on the market

Brilliant speaker all round Superb sound quality which is better than anything else in its price range on the market Very loud and rich sound both indoor and outdoors. The water proofing is excellent and the battery life is brilliant & can charge your phone and tablet while playing it is on the heavy side for a portable speaker so i would recommend using the strap supplied however for the features & sound it’s a minor issue. The quality of the calls however wasn’t brilliant as with most Bluetooth speakers for some reason and the other other downside would be it doesn’t have a Optical Port for easy connection to a Tv however it does have a AUX. Overall would recommend

Pros: battery life , Charges upto 2 devices while playing, Ease to use, Good build quality, waterproof Cons: heavy, No Optical in

Video review

Product Tester.

A customer who has been given a product to use and keep in exchange for an honest review.

Best Portable Speaker I've had

This is the best portable speaker I've used. The greatest thing in my opinion is that it CAN be portable, however is perfect for the house too. The bass range is more than enough for the size and the volume...oh the volume. It's amazing how loud you can get this thing with no loss of quality. I tried my best to make this distort (everything turned up to 11) and nothing. No clipping or distorting whatsoever. From now on, this will be my go to speaker for every outing/trip I take. Not only that, it'll be the speaker I use when in the kitchen and the bath. With that fact that it's waterproof, I no longer worry about any condensation ruining a speaker I'm using in the bathroom. Obviously submerging this speaker would likely kill it, if not drastically harm it, but who in their right mind wants a speaker underwater? Additionally, this speaker works as a powerbank with 2 USB ports solely for hooking up phones or tablets to charge. All in all, a great portable speaker and with the ability to wirelessly pair 2 of these together, it could very well be my new home system. I also hooked it up to my TV to see how it did. Just. WOW! Could not recommend this speaker more. Take a look at my video for an unboxing and a hands-on look.

Pros: Ease to use, Good build quality, Looks good, Value for money Cons: None

Video review

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Delivery from Wed 29th Mar Delivery from tomorrow, 29th March From tomorrow, 29th March From tomorrow, Wed 29th March
Product information
Finance From £7.35 a month (APR 19.9%)
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