Patent attributes
The invention claimed herein and depicted in FIGS. 1 through 4 presents a combined alternate power source and speakerphone device for handheld devices such as cellular telephones. Housing 2 contains battery compartment 28 that accepts batteries such as “AA” or “AAA” cells, which are installed by opening sliding cover 4. Electrical power and speakerphone circuit board 24 are also mounted within housing 2, while on/off switch 8, volume control 10, speaker 12, microphone 14 and cord 16 are mounted onto the housing's outer shell. Cord 16 features socket 18 at its terminal end which accepts a plurality of interchangeable adapter plugs 20 that accommodate the input sockets of a variety of handheld devices. When this invention is installed onto a device such as a cellular telephone, the user can select the mode of operation that provides an auxiliary source of operating power and/or an external speaker and microphone for hands-free use of said device.
