DEWALT 12 V/ 20 V MAX* charger radio. USB port allows device to be charged via USB when radio is plugged into a wall outlet. Device storage box protects electronic devices from jobsite debris while plugged into aux or USB ports. Class D amplifier, woofers and tweeters provide full range of high and low sound for optimum sound quality. Radio provides full range of rich sound while running of the DEWALT 12 V/ 20 V max batteries or AC power cord. Provides additional versatility with the ability to charge batteries while plugged into an AC power source.