JBL claims the Flip 5 is waterproof to IPX7 rating. This means you should be able to submerge it in water at a depth of one meter for 30 minutes; there is no cover for the USB-C charging port, and while it is waterproof, it has not been tested against salt or sand ingress on the beach. To use PartyBoost, you click a dedicated PartyBoost button on the speaker, and you can also pair a second JBL speaker for stereo sound or to add a little extra zing to your party. In my experience, just one speaker has been more than enough for every hike or trip to the beach I’ve ever made. If you find yourself frequently needing a second speaker to power your party, it might be worth investing in something like the JBL Boombox or the UE Hyperboom, both of which are huge speakers that you should have no problem partying with It may be worth investing in something like the JBL Boombox or the UE Hyperboom, both of which are huge speakers that you should have no trouble partying with. Its portable, lightweight design makes it easy to bring with you on the go, and its IPX7 rating means it is certified to be submersible in water up to 30 minutes at a depth of 1 meter. 8+ hours of use on a single charge is plenty for a full day on the go, but battery runtime depends on usage. Unfortunately, the volume is not very loud and can be slightly oppressive when turned up to maximum volume.
