JBL presents the JBL Charge 4, the portable Bluetooth speaker with powerful sound across the entire frequency spectrum and a built-in power bank to charge your devices. It features a proprietary speaker driver, two JBL bass radiators and a powerful lithium-ion battery for up to 20 hours of playback time. Its powerful rechargeable 7,500 mAh lithium-ion battery provides up to 20 hours of playback time. The speaker has a convenient USB charging port to quickly charge your devices, such as your smartphone, so you always have power. Charge 4 features a rugged design and IPX7 waterproof exterior and is available in a range of cool colours. With JBL Connect+, it can be wirelessly connected to over 100 speakers compatible with JBL Connect+ for a superior listening experience. Up to two smartphones or tablets can be wirelessly connected to the speaker for powerful sound. Take the Charge 4 with you to the beach or to the pool - it will withstand water splashes and even immersion in water without any problems. The built-in rechargeable 7,500 mAh lithium-ion battery provides enough power for up to 20 hours of playback and charges devices via the USB port.