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Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Friday, Oct 30
At a glance
- Condition
- New
- Model
- CS260708
- Color
- Black
- Special Feature
- Portable
- Supported Audio Format
- MP3
- Warranty
- 1 year
- Works with
- Speaker
Features 5
- Secure Carrying Backpack Straps with Weight-Bearing Structure: This shoulder strap is specifically designed for for JBL Boombox 4 large speakers, featuring reliable metal buckles and a non-slip base with soft lining and nylon fabric for enhanced support. The construction prevents bosinas. bluetooth for JBL slippage while providing secure portability for your for JBL bluetooth speaker. (Strap only, bluetooth speaker not included)
- Adjustable Black Purse Strap with Customizable Fit: Featuring hook-and-loop patches and an adjustable strap for bag, this crossbody bag straps offers easy boombox 4 installation and personalized adjustment. The flexible design allows quick length modifications to suit different carrying preferences and body types
- Comfortable Carrying Experience with Wide Strap Design: The wide bag strap crossbody for JBL speaker distributes weight evenly across your shoulder, while multiple length adjustments (35-60 inches) accommodate users of various heights. This luggage straps ensures comfortable transport during extended use
- Speaker Case with Comprehensive Speaker Protection with Reinforced Ends: Reinforced rigid end caps protect vulnerable for JBL bluetooth boombox corners while allowing uninterrupted music playback without wide purse strap removal. The soft lining prevents scratches and marks, while the shock-absorbing structure helps defend against impacts and drops
- Multi-Scene Application Travel Strap: Ideal for outdoor adventures with comfortable carrying portable speaker and resilient performance, social gatherings with quick setup and stylish appearance, daily commutes offering hands-free convenience, and workplace environments supporting consistent long-term use with your portable for JBL 4 Speaker
Description
Big Deal Days are coming soon—upgrade your storage for home, work, travel, and everyday life before the event ends.
Specs 13
| Brand | casmilee |
|---|---|
| Color | Black |
| Connectivity Technology | Bluetooth |
| Special Feature | Portable |
| Supported Audio Format | MP3 |
| Additional Features | Portable |
| Number of Channels | 2 |
| Software Update Supported to Date | unknown |
| Number of Items | 1 |
| Manufacturer | Casmilee |
| Item Highlight | Nylon adjustable 35-60 in strap with metal clips, soft lining and non-slip base for JBL Boombox 4 outdoor carry |
| Unit Count | 1 Count |
| Mfr Part Number | CS260708 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Oct 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Great quality, minimalistic case for Boombox 4
I ordered this mistakenly thinking it would also fit the JBL Boombox 3 but in fact it does not - it’s a few inches too big in pretty much all directions. I’ve already been debating getting the 4 anyway because of its extra features, so this case will still get use once that finally gets picked up. The case is very well made, with durable feeling nylon fabric, professional stitching, and even edge binding. It’s quite lightweight because its design is more like a harness or those ‘bikini tops’ that older Jeeps sometimes have, but it’s got all the padding in all the right places. At the speaker ends are nylon fabric encased, thickly padded ‘O’s with what feels like plastic reinforcement inside that fully envelop the speaker surround. Connecting those is another nylon enclosed thickly padded strip that runs the bottom length between the ends, protecting the underside from scratches and bumps. On top there are two adjustable nylon straps that close the loop around the boombox, snugly securing it inside without obstructing any controls or anything. The adjustable nylon shoulder strap connects to the top of the ‘O’s making it easy to sling over a shoulder, leaving hands free for other tasks. The strap is wide enough to not pinch or dig into the shoulder, providing a very comfortable carry considering the weight. Overall I really like this case. It’s very well made, and its minimalistic design is practical and well thought out. Price seems reasonable for the quality. (Kinda glad it didn’t fit my 3 - good excuse to go ahead and get the 4! LOL) Recommended with five stars!
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Reviewed in the United States on January 21, 2026 by aguadillano aguadillano
JBL BOOMBOX 4 carry strap with protective end caps
YES !!!! This is specifically for the JBL BOOMBOX 4. It cannot be modified for any other JBL speaker. It’s designed to be a cross body, shoulder strap to carry the speaker. The end caps are cushioned and should provide protection for the speakers. The description is accurate. The design is simple. The reinforced rigid nylon cushioned end caps should protect the frame of the speakers. The bottom nylon strap connecting the end caps is flawed and will wear out in time. The straps appear strong enough to hold the JBL Boombox 4. I’m giving it 4 stars because it does what it was designed to do. I think it could have been designed better. The side Velcro straps are adjustable but the bottom one is not. There’s space where there shouldn’t be any. The bottom is nylon without any resistance. Meaning it can slip and slide. There should be rubber footing for stability. The straps aren’t anything special, they could also be more durable for such a large speaker. This is an expensive speaker, use your judgement wisely when choosing a strap for transporting it.
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Reviewed in the United States on December 29, 2025 by C. G. C. G.
Safe & Stylish Transportation for the Boombox 4
If you own a JBL Boombox 4, you know it’s an absolute beast of a speaker but carrying it around by the built-in handle gets tiring quickly. I’ve always been worried about scratching the fabric or damaging the passive radiators while traveling. This Carrying Case with Shoulder Strap is the perfect solution. The case is tailored specifically for the Boombox 4, providing a snug fit that doesn't feel loose or bulky. It covers the speaker entirely. The material feels durable, protecting against dust, scratches, and light rain (water-resistant). It’s much safer than just carrying the speaker bare. The included shoulder strap is a game-changer. It is adjustable and padded, allowing for easy, hands-free carrying over long distances, which is great for beach trips or hiking.
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Reviewed in the United States on February 15, 2026 by Amelia
Perfect fit
My JBL Boombox 4 is a real tank of a speaker. It has incredible sound and volume with battery life that seems to go for days. The only real issue? It's a pain to take it places. Portable is a bit of an oversimplification. It comes with a strap but that leaves a lot to be desired. This case and strap combo is a marked improvement. It provides additional protection for business ends as well as a much better strap. It's a heavy-duty material that should hold up for years to come. It fits perfect and gives peace of mind for your exorbitantly expensive speaker. Highly recommended.
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Reviewed in the United States on February 18, 2026 by Dave Stanzito
Well made
So by my own fault I ordered this and it did not fit my speaker. I had different model so that is on me. Unfortunately it cannot be modified to fit any other JBL model, but the quality of the material for the case and the strap are excellent. The stitching is well done, light weight, and strap is adjustable. Adequate padding to protect the speaker without muffling sound. Good buy for the price just make sure you do not goof up like me and buy for the wrong JBL model.
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Reviewed in the United States on January 14, 2026 by Mufasa0331
perfect size
Items exactly as described! Definitely makes carrying way easy! I would've taken pictures, but my speakers put up in camper for the winter! Can't wait to put this to use! great deal. made well.
Reviewed in the United States on February 6, 2026 by Cathy Griffith
Protect and carry your boombox 2 in 1 case
The case fits the Boombox perfectly and makes it super easy to carry around especially because it is larger than the other models. The shoulder strap is adjustable and comfortable enough to carry around for short distances as the strap does not have padding, but it works. The shells that go over the sides of the speaker are rigid so it adds protection to your boombox, with the bottom pad also adding a layer of protection when you set the speaker down. Fully adjustable straps make it easy to find the fit that works best for you making it functional, and the stitching on the straps and case are very good, making the case durable, and a great add-on for your speaker.
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Reviewed in the United States on January 17, 2026 by gabe
No llego completo
Me faltó la correa de colgar
Reviewed in the United States on February 6, 2026 by Fredis gonzales