The JBL Charge instruction manual is available on the JBL by Harman website. From the home page, type "JBL Charge" into the search box. Click on the product photograph to go to the details page. Click on Product Specs and Manuals and then select the manual to view.
The JBL Charge quick start guide uses drawings to show how to turn the device on and off, how to control the volume, where to input charging accessories and headphones and how to pair the unit with Bluetooth devices. The guide also lists product specifications. The spec sheet details JBL Charge features and the package contents for new devices.