A:AnswerI do not recommend this model for sustained listening to music that is mixed in a way that challenges the integrity of the speaker. Mine blew out after a few months of light usage.
A:AnswerTry a dedicated USB Charger first (maybe you can borrow one from a friend). Many computer ports do not supply sufficient energy to charge some of the larger batteries properly.
A:AnswerDonna, the other answer to your question was about earbuds. Odd. To answer your question about the Flip 4, you can advance to the next track by double pressing the play button (the sideways triangle). Each double press will advance one track. There is no way, unfortunately, to go back to previous tracks.
A:AnswerThank you for reaching out to us.Even with one phone connected through bluetooth with the JBL Flip 4, You can press on the Connect + Button on the Flip 4 to connect to more Flip 4, you can even connect up to 100+ devices with the Connect + feature.
A:AnswerThanks for taking the time in asking. If the only way you can power it on is to connect it to the power outlet, then you can tell that there is an issue with the battery.
A:AnswerThe JBL Flip 4 comes with a USB charging cable for you to charge it through your phone's charging block or through the USB port of your computer.
A:AnswerHi! Yes you could connect your Amazon Echo to the JBL Flip 4 or any Bluetooth speaker. It will act as an external loudspeaker, as for commands you may need to use your Echo dot (Alexa) in giving those commands.