MRINCA Stretch Speaker Cover for JBL PartyBox 720, Washable Lycra

Some speaker setups need protection mainly between events, others call for a cover that can stay on while the speaker is moved. The MRINCA stretch cover is designed for the JBL PartyBox 720, with details for both storage and transport.

Its Lycra fabric stretches around the speaker for a close fit, while elastic edging helps hold the cover in place. The black, solid-color design keeps the focus on practical protection from dust and scratches.

A top-handle opening and wheel cutouts make access and movement more convenient without taking the cover off. The result is a purpose-built cover for keeping a PartyBox 720 protected between uses.

Tech summary

This speaker cover is made from Lycra and sized for the JBL PartyBox 720. Its listed dimensions are 15.5" L x 15.5" W x 37" H. A stretch construction and reinforced elastic edging create a fitted sleeve, rather than the looser coverage of a general-purpose cover. That fit helps keep the fabric positioned around the speaker during storage or transport.

The bottom elastic cord allows an adjustable fit, and a buckle-style closure secures the cover. A pre-cut opening provides access to the speaker’s top handle, while wheel cutouts accommodate its wheels. The cover is washable and reusable, making it practical for repeated use. Its scratch- and dust-resistant fabric helps protect the speaker’s exterior when it is not playing.

Getting the most from it

For storage, pull the cover over the speaker and adjust the bottom elastic cord so the sleeve sits securely. The fitted shape helps cover the speaker without the bulk of a large, loose cover. When it is time to move the PartyBox 720, the top-handle opening gives access to the handle, and the wheel cutouts let the speaker roll with the cover in place. What’s more useful than keeping protection on during the move from storage to setup?

This design suits a speaker that moves between indoor storage and outdoor gatherings, or one that is put away between parties. The cover acts as a layer against everyday dust and surface scratches, while the stretch fabric and reinforced edging support a close fit through regular covering and uncovering. When it needs cleaning, the washable construction supports reuse, follow the care guidance for the fabric.

A purpose-fitted sleeve is a natural choice when you want the cover shaped for a specific speaker and its handling features. It makes sense if you own a JBL PartyBox 720 and want access to its handle and wheels without removing the cover each time you reposition it.

What you get

The package contains one black MRINCA speaker cover for the JBL PartyBox 720. It is a Lycra stretch sleeve with elastic edging, a bottom adjustment cord, a buckle closure, a top-handle opening, and wheel cutouts. The cover is washable and designed for repeated use, so it can serve as a regular storage and transport layer for the speaker.

Final verdict

For JBL PartyBox 720 owners who want a fitted cover for storage and movement, this MRINCA sleeve brings together stretch Lycra, adjustable elastic, and access to the top handle and wheels. Its washable, reusable construction makes it well suited to protecting the speaker between gatherings and while moving it from one setup to another.