Iam writing this review after testing out JBL mod for an week or so . So i will cover it positive & negative parts & will clarify your dout regarding this jbl gadget so first of all lets talk about in general

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JBL Mod

The first impression was good it was something pretty dam good it looks a gadget of 21st century nicely built made of plastic & as we all know at the rear bottom magnetic attachments pins are provided so it will connect it just like changing a back...

Very good sound quality...bass is good....

This an awesome gadget!
Keep the good work up Jbl, loved it.
I want to thank Motorola also for their beautiful creation , thank you.

JBL Soundboost
There isn’t much to say about the Soundboost – it’s one of the most obvious smartphone accessories. Smartphone speakers aren’t generally very good, and the more space you have to push air through, the better. This speaker mod snaps on, and the sound is immediately passed to it rather than the Moto Z’s earpiece speaker. It is rather heavy at 115g though and does change the balance of the phone in your hand.

You’ll see space at the top for the Moto Z’s camera to poke through, an...

Nice delivery, i gifted to my brother on his birthday . And a very awsome product , working best as quality product-JBL!

Awesome product. Sound quality is excellent as aspected. Nice work by jbl for moto mode. 110% recommend for moto Z series users. Music lover must buy you can always carry your mini home Theater with you.

Brilliant concept. This should definitely be the second mod that one should buy (after the battery mod of course). Wish there were back covers for the mod. Don't mind carrying it around.
Sound wise, very good... Great for sharing good music with the gang. Does the job...

Want something portable that sounds good as well?
Well then, you search ends now.
I am a bit of a audiophile myself (a budget one at that). Do have some quality audio hardware like MDR-1000X, TX-RZ800 etc.
The audio out of these is mostly crystal clear unless you are driving them on full blast on a Honey Singh track. I do expect it to crackle on bass/treble heavy tracks as speakers of this profile should not be expected to handle them. Turn down the volume a notch and they sound great.
People...

The sound boost is neat product. I am reviewing it after a weeks use. The clarity is super. Being a traveller and a music fan this mod is very useful.
Bit costly but worth it. Once attached the phone looks like a tank.

The boost is loud enough to fill a small room. Anything louder, you would need a full fledged speaker set. It provides additional battery backup ~1000maH which is very useful.

Extremely great product in terms of voice it is marvelous I had never expected this clarity before I will read read lots of reviews and all said the voice is the best and truly the voice is mesmerizing I had only seen this kind of voice Inna live concert I am not talking about the loudness I am talking about the clarity only flaw I found was about the battery life the battery cannot stay more than 3 hours if you continuously play it on the maximum volume. The battery of it is separate but it ...