| 摘要 |
The present embodiments provide dual sided ear cup systems ( 620 ) operable with devices, such as a communication device ( 120 ). The dual sided ear cup system includes a transducer ( 622 ) that generates acoustical signals from both a front side ( 624 ) and a back side ( 626 ). The system preferably further includes a front side resonant frequency cavity ( 630 ) establishing a first resonant frequency, and a back side resonant frequency cavity ( 632 ) acoustically matched with the front side resonant frequency cavity. Some embodiments provide wireless communication devices ( 120 ) having wireless communication circuitry to receive wireless communication, a front side ear cup ( 240 ) and a back side ear cup ( 140 ) for emitting substantially the same acoustical signals corresponding to received wireless communication. The wireless device can include a display portion ( 122 ) having the ear cups, a keypad portion ( 124 ), and a swivel connection ( 320 ) between the display and keypad portions.
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