So whats the big difference between the JBL Flip 4 and the JBL Flip 3 they look exactly the same. Well for starters the JBL flip 4 is now IPX7 water proof, which means you can submerge it water without any problems. Where as the JBL Flip 3 is only splash proof. But even though the JBL Flip 4 is now water proof, one major flaw it still has is that it dosnt float. So if hypothetically if you were using this speaker next to a pool, on a boat, or next to a lake and the speaker some how fell into the water it'll just sink to the bottom. which could be a problem. and when its completely submerged in water the blue tooth connection will cut out until you take it out of the water again. The JBL 4 also sounds 20% better than the JBL Flip 3 and i’ll go into sound quality in just a bit. And finally, the JBL Flip 4 now has a 12 hour battery life versus the Flip 3’s 10 hour battery life.

Alright, so lets talk about what matters and thats sound quality. the JBL Flip 4 has no problem filling a Room or bath room. and anyone with in a 30 foot radius of this thing outside will have absolutely no problem hearing it when its at max volume. Personally I feel the Flip 4 sounds its best when its used at a moderate to moderately high listening volume. The bass is punchy, and the Mids and high are clear. Its at higher volumes where the resolution and clarity of the highs and vocals start to suffer. But for a small hundred dollar speaker that is to be expected. This speaker does connect to your phone or other device via bluetooth 4.2 and has a range of about 100 feet with direct line of sight. And since its bluetooth 4.2 you can pair up to 2 devices at the same time with your JBL Flip 4. right now i have it pair to my iPhone and Macbook. And the wireless connection has no problem going though multiple walls if you're using it inside your house. But if you prefer a wired connection the JBL Flip 4 has you covered. Like I said earlier, there is an audio jack and i can tell you right now that it really is a huge benefit. after listening to the same songs with and without a weird connection back to back I'm happy to report that the over all sound quality gets better, its much clearer, and its louder. and unlike with the bluetooth connection where the sound quality starts to suffer at high volume, using a wired connection really helps keep the resolution intact.