Wireless Bluetooth Streaming
IPX7 Waterproof
Dual Passive Bass Radiators
Built-in power bank to charge your devices
20 Hours of Playtime under optimum audio settings
JBL Connect+ Technology enabling pairing of 100 JBL Speakers
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