Get ready to groove with the JBL Xtreme 3 portable speaker. Blast your tunes loud and proud with JBL Pro Sound. With four drivers and dual JBL bass radiators, any space becomes a party zone. You can wirelessly link up extra speakers using JBL PartyBoost and get the music pumping loud. All managed through the super easy JBL Portable app. Good to know- Up to 15 hours of battery life will see you from sundown to sunrise- With its handy carry strap, you can take your beats anywhere, anytime- The built-in power bank lets you charge your devices without pausing the music- It's built tough with an IP67 rating - the waterproof and dustproof design is ready for any adventure