Patent ID: 8897471

Claim:
A mobile terminal comprising: a housing comprising a first region defining a first cavity and a second region defining a second cavity; a first transducer operable to reproduce signals having frequencies within a first working frequency band corresponding to at least a phone frequency band and when positioned adjacent to the first region of the housing seals the first cavity defining an airtight cavity in such a way as to reduce acoustic short circuits due to a recombination of sound waves originating from both a rear side and a front side of the first transducer; and a second transducer operable to reproduce signals having frequencies within a second working frequency band different from the first working frequency band and when positioned adjacent to the second region of the housing, does not seal the second cavity such that the second cavity is not airtight, wherein: a lowest frequency of the second working frequency band is greater than a lowest frequency of the first working frequency band, and the first and second transducers are configured to be activated simultaneously as loudspeakers to provide a stereophonic effect, the first transducer is positioned adjacent to the first region to seal the first cavity, and faces in a first direction, and the second transducer is positioned adjacent to the second cavity, and faces in a second direction different from the first direction.