Abstract: An audio device (200, 220, 230) includes an enclosure (202) having one or more openings (206A-B), one or more speaker systems (214) carried in the enclosure for receiving signals from a corresponding audio source (308), and one or more magnetic elements (216, 222, 232) coupled to the enclosure. The magnetic elements attract particulates (204, 212) entering one or more openings and separate said particulates from one or more speaker systems.

Abstract: 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.