Wirelessly connect up to 2 smartphones or tablets to the speaker and take turns playing impressive stereo sound.
Built-in 3000mAh rechargeable li-ion battery Supports up to 12 hours of playtime.
Ipx7 waterproof means no more worrying about rain or spills; you can even submerge flip 4 in water.
JBL connect+ allows you to Link more than 100 JBL connect+ enabled speakers together to amplify the party.
Dual external passive radiators demonstrate just how powerful your speaker is.
WOW! The sound is amazing!! This was bought as a birthday gift and we were both thrilled. It fills the room with sound that is so clear that we were astounded. There was a part of the music that was a piano playing and if you were in another room, you would swear there was someone in the next room playing. Great gift. Great sound. Great buy. ~ Amazon Review
Getting over the physical features first the flip 4 is ever so slightly bigger and ever so slightly heavier but despite the minor increase the flip 4 is still very portable very compact for most people's needs, the nylon fabric makes a return offering a very rugged experience and with this model it's not just splash proof but JBL finally caught up with the competition and it is now fully submersible in water with the flip 4 ipx7 rating it can't go under water up to one meter or 3.3 feet for those on the imperial system and for up to 30 minutes as a side note the speaker does not float which is quite a letdown you UE & fugu speakers actually floats if you ever drop them off the boat or into the pool.
Now looking at the buttons there's bluetooth pairing on the far left volume up and down and to the far right is pause and play or if you use the app to change it you can have the same button to call up Siri or your Google assistant, besides those options you can answer phone calls with that little triangle and with my testing unfortunately it sounded quite bad standing at just two feet away from the speaker my voice was audible but it had slight rasping sound and on the other end they were able to tell that was clearly on a speaker phone at four feet away which is very reasonable here speaking naturally my voice sounded very raspy then there was an echo similar to me speaking while I was in the bathroom and I sounded much much further away that it was somewhat annoying for the person and the other end. Now finishing up these buttons there's power up top with five white LEDs to indicate battery life my battery test will come shortly here so just hang on tight there is a JBL connect plus button and I want to emphasize the plus in the name with last speakers they also had JBL connect but you were only able to pair those speakers with one other JBL connect speaker with the plus versions here you're now not limited to just two but you can connect over a hundred of these speakers all at the same time and all of them would play in sync that's perfect for those trying to fill up a room the only problem though and seriously I'm personally bummed out about this as I know many of you already purchased a JBL charge 3 or maybe the JBL Xtreme the Plus version don't even pair with last year's model the flip 4 cannot pair with any other speaker unless it's another flip for or until JBL releases new models later this year and maybe into the future then you can mix and match and sync two speakers or more together, so just a heads up on that. Now moving on under that field flap there's an axillary port for physical connections and right next to that is the microUSB port for charging the device it was my testing at 50% volume the same volume level on every one of my speaker tests for the last three years or so after 14 hours of playback that the maximum went here it still had 50% battery life remaining that's phenomenal now ran this a second time this time at maximum volume and they speaker lasted exactly four hours and a speaker, also does slightly warm up at higher volumes but didn't notice anything hazardous about it, that last but not least your signal strength on this and being frank bluetooth technology is nearly perfect these days I walked through the entire house here upstairs and had the signal go through several walls and the flip 4 never cut out or skip on a signal strength.
Keep in mind the flip floor does fall into these small speaker category it's not meant for big rooms but this little thing can for sure fill up small better of the dorm rooms and at full volume it can fill a medium-sized room quite well the large open room surprisingly it does not sound tiny at all and it is still very much enjoyable for personal listening now for entertaining of course sound will be slightly suppressed I would then recommend a medium sized or of course the larger size speakers at your disposal.
I have fifty to sixty percent in volume which is a comfortable listening it's full of bass that is not distorted or raspy at a very punchy character that I absolutely love and we turn it up to maximum bottom base levels stay the same but the mid-range in highs are now further emphasised the mid-range is clear very distinguishable especially at high volumes which is great and the mid-range of vocals and instruments are pushed forward but despite being forward the small speaker still lacks detail or resolution but again it is small and the price is only $100 I can't expect it to perform like a $200 or $300 speaker out there assumption based on the high frequencies snare drums and cymbal crashes are two of the main instruments you will find here, they're not raspy at comfortable listening but at maximum volume you do lose resolution or details at the very top and the high frequencies do slightly jumble a bit now for the average consumer you'll most likely won't notice this the average consumer that are more articulate you might be able to tell but again for the $100 price range this speakers overall performance is still phenomenal now as for a soundstage like most bluetooth speakers out there there's hardly any audio separation unless you go the JBL connect plus route so in conclusion here the only downfall a grep is the lack support for existing JBL speaker owners basically not being able to pair this with the new flip 4 now maybe there's a firmware update that could come down road maybe not we'll just have to wait and see now for those looking for a rugged bluetooth speaker the flip 4 is rugged though but keep in mind it does not float when you compare it to some of the competition out there it is somewhat of a letdown if you do drop us into the lake and you're unable to see where it fell or if you're unable to dive and get it it's basically gone forever on the other hand though how loud this thing gets the amount of baseless offers and indeed the future speakers that can connect using the JBL connect plus feature that flip 4 is still a great speaker to buy I do highly highly highly recommend it the audio performance alone something better than most other small bluetooth speakers on the market in my opinion so that's it for this review.