With the JBL Charge Necessary, you can make your adventures last even longer. This rugged, durable Bluetooth speaker features powerful Original JBL Pro Sound and a convenient power bank in one rugged, durable box. A convenient USB port allows you to easily charge your devices so you can continue to demonstrate your DJ skills. Thanks to dual passive radiators, your music will get everyone on the dancefloor. Immerse yourself in your surroundings. You have no cords to hold you back, whether you’re listening to music or taking calls. Dual Connect allows you to use one earbud, or both, in stereo or mono mode, at any time. With JBL Pure Bass, your favourite artists sound awesome. You can keep the fun going all day and night with a battery life of up to 21 hours and a comfortable fit. And if you don’t get a chance to see the show, don’t worry.