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Common problems for the device are addressed in the Troubleshooting page
Identification & Background
The JBL Charge can be used to charge other devices using its USB port. It contains a 6000mAh Lithium ion battery, and it uses Bluetooth technology to connect to another audio source. The battery generally lasts 12 hours without charging.
Its specialization is for outdoor activities because of a durable casing and design. The JBL Charge was released in four primary colors: Black, Gray, Blue, and Green. The device's dimensions are approximately 7 inches long and 3 inches in diameter. The device carries a USB adapter that can charge phones, ipods, etc. The speaker comes with a carrying pouch as well.
There is also a JBL Charge 2 on the market. A simple way to determine the difference is to look at the buttons. The JBL Charge 2 uses touch sensitive buttons, whereas the JBL Charge uses manual push buttons. The original JBL Charge does not have a microphone, as opposed to the JBL Charge 2.