Patent ID: 8213659

Claim:
Apparatus comprising: a housing, the housing comprising a first body part and a second body part, the first body part being moveable relative to the second body part, wherein the housing has a first configuration when the first body part is in a first position relative to the second body part and a second configuration when the first body part is in a second position relative to the second body part; and a speaker arrangement, wherein the speaker arrangement comprises: a transducer, a front cavity coupled to a first side of the transducer, and an opening, the opening connecting the front cavity to an exterior of the housing, and a rear cavity coupled to a second side of the transducer, the second side of the transducer being on an opposite side of the transducer to the first side of the transducer, wherein the speaker arrangement has a first physical arrangement when the housing is in the first configuration and a second physical arrangement when the housing is in the second configuration, the first physical arrangement being different to the second physical arrangement, wherein the apparatus is configured such that at least one of an area and a length of the opening is greater when the housing is in the first configuration than when the housing is in the second configuration.