This is the one
JBL Boombox 4 Black
According to our Bluetooth speaker expert
Maximum battery life | 28 hours | |
|---|---|---|
Weight | 8,16 kg | |
Water resistance | Waterproof | |
IP certification | IP68 | |
Water-resistant |
Current product
440,-
422,-
421,-
Stereo
Stereo
Stereo
28 hours
28 hours
28 hours
Auracast
Auracast
Auracast
5 stars
3
4 stars
1
3 stars
0
2 stars
0
1 star
0
Sometimes products are simply good, and this one is no exception. A truly impressive device to behold. With a simple press of the Bluetooth button, it pairs with your phone in seconds. Playing Eefje your favorite playlist is a breeze, and then the party can begin. The music is crystal clear, and the birds, in particular, come through beautifully. Of course, with the first banger, you can already hear the bass rumbling through the room. With the double bass boost function, you can hear it go even lower and deeper. Truly amazing. Personally, I thought the lighting behind the exclamation marks on the subwoofers was a nice touch.
This makes this speaker stand out in both sound and appearance. I can highly recommend it. A fantastic piece of technology that you can carry around in your hand.
RoyyoR
9 December 2025
Automatically translated from Dutch
At first, I was a little shocked by the size—it's quite large—but I decided to see what it could do.
And that was a shock too! Because this speaker delivers an unbelievable amount of sound. When you turn on the bass boost, the glasses in the cabinets start to vibrate, without distorting the sound. The bass boost isn't strictly necessary, but it's really nice with some songs.
The size, as mentioned before, is a bit larger than I initially thought, but you eventually get used to it and appreciate it.
It's also fun that the lights dance along with the music.
It's super convenient that it has a fairly large battery, so you can listen to music all day long. Of course, you can also just plug it into the power cord, so you don't have to worry about the battery.
Rickert1993
10 December 2025
Automatically translated from Dutch
The JBL Boombox really has a good name: it blasts loud sound from the speaker. It's perfect for parties or similar outdoor activities. You can take it with you worry-free because it's waterproof, and enjoy good sound with customizable settings. Want to dance? Extra bass. Create a chill vibe? More clarity. I do think it's a bit big. It would be great if you could get this quality in a more compact design, but it's really convenient for listening to music with groups outdoors.
Serianna
16 December 2025
Automatically translated from Dutch
Coolblue takes care of everything, from taking out an insurance to repairs
For almost all accidents
More coverage in case of damage than your standard warranty
No deductible
First, add your Bluetooth speaker to your shopping cart. On the next page, choose the Protection Plan below. You always have a 30-day return window and pay no deductible in case of damage.
2-year Protection Plan
15,99
one-time3-year Protection Plan
33,99
one-time
Product number | 964852 | |
|---|---|---|
Manufacturer code | JBLBOOMBOX4BLKEP | |
Brand | JBL | |
Processing of your defect | Via Coolblue | |
Old product returned for free |
Speaker type | Bluetooth speaker |
|---|---|
Width | 50,64 cm |
Depth | 21,29 cm |
Height | 26,29 cm |
Weight | 8,16 kg |
Color | Black |
Maximum battery life | 28 hours |
|---|---|
Average battery life | 28 hours |
Water resistance | Waterproof | |
|---|---|---|
Waterproofness certification | IP certification | |
IP certification | IP68 |
Multi-room audio | ||
|---|---|---|
Multi-speaker connectivity technology | Auracast | |
Sound reproduction | Stereo |
