Enjoy your music anywhere with the JBL Charge 4 Portable Bluetooth Speaker. With its waterproof construction, you can use the Charge 4 out by the pool or at the beach without worry. Even in a compact form factor, JBL packs high quality audio reproduction into the Charge 4 with a proprietary driver and twin JBL bass radiators for deep low-end sound. The Charge 4 wireless speaker can stream audio from your mobile device all day long, and you can expand the soundscape by linking it with other JBL Connect+-compatible speakers. It supports linking up with more than 100 different speakers, covering everything from a small backyard gathering to a large party.