The blue JBL CHARGE2PLUSBL Charge 2 Portable Stereo Speaker features dual drivers and twin passive radiators for deep, accurate bass. It supports Bluetooth wireless functionality, so you can stream music wirelessly from Bluetooth-enabled devices. An integrated 6000 mAh Lithium-ion battery can last up to 12 hours on a charge, and you can even charge other portable devices via the USB port. Since it also has a built-in microphone, you can also have hands-free speakerphone calls. Patented noise and echo cancelation ensure clear communication. The Bluetooth Social Mode allows up to three different users take their respective turns playing their own Bluetooth-enabled devices on the same speaker. Additionally, the Charge 2 features a splashproof design, so there's no more worrying about rain or spills just don't submerge it.