Patent ID: 9609435
Date: 2017-03-28
CPC Classifications: H04R

Claim:
1. A compact speaker assembly comprising: a housing including a rear housing portion and a bezel secured to the rear housing portion, said rear housing portion and said bezel forming first and second chambers; a first audio speaker mounted within the first chamber and a first passive acoustic radiator installed within the first chamber, the first passive acoustic radiator being acoustically coupled to the first audio speaker; a second audio speaker mounted within the second chamber and a second passive acoustic radiator installed within the second chamber, the second passive acoustic radiator being acoustically coupled to the second audio speaker, the second audio speaker being operative for a different audio channel from the first audio speaker; stereo audio amplifier circuitry having first and second channel audio inputs and first and second driver outputs coupled to the first and second audio speakers, respectively; a Bluetooth module which enables wireless connection of first and second audio outputs from a mobile device to the first and second audio inputs, respectively, of the stereo audio amplifier circuitry; an onboard battery for powering the stereo audio amplifier circuitry and the Bluetooth module; battery charging circuitry for charging the onboard battery from a 5-volt external source; and means for charging the battery of an external mobile device from the onboard battery.