JBL Charge 4, Wireless Portable Bluetooth Speaker, JBL Signature Sound with Powerful Bass Radiator, 7500mAh Built-in Powerbank, JBL Connect+, IPX7 Waterproof, AUX & Type C (Without Mic, Black)

20 Hours of Playtime under optimum audio settings
Wireless Bluetooth Streaming
JBL Connect+ Technology enabling pairing of 100 JBL Speakers
Dual Passive Bass Radiators
Build-in Power bank- High-capacity 7500mAh battery can charge your smartphones and tablets via its USB output.
What’s in the box: 1 x JBL Charge 4, 1 x Type C USB Cable, 1 x Safety Sheet, 1 x Quick Start Guide, 1 x Warranty Card
In order to reset the Charge 4, with the unit on, press “Volume+” and “Bluetooth” at the same time for 3-4 seconds until you hear the audible chime