An apparatus comprising: a first part (301, 311) configured to form at least part of a case of the apparatus; a second part (303, 304) configured to form at least part of a display for the apparatus; a coupling configured to couple the first part (301, 311) to the second part (303, 304); at least two actuators coupled to the second part (303, 304) and configured to apply a force to the second part (303, 304) to generate a displacement of the second part (303, 304); and a mode determiner configured to determine a mode of operation of the apparatus in dependence on at least one proximity sensor, wherein the apparatus is configured to: in a hands-free mode of operation, operate the at least two actuators to generate a translational displacement of the second part (303, 304) relative to the first part (301, 311) to provide a first acoustic amplitude of sound from the translational displacement of the second part (303, 304); and in a hands-portable mode of operation, operate a sub-group of the at least two actuators to generate a localized displacement of the second part (303, 304) relative to the first part (301, 311) to provide a second acoustic amplitude of sound from the localized displacement of the second part (303, 304) which is less than the first acoustic amplitude of sound. a first part (301, 311) configured to form at least part of a case of the apparatus; a second part (303, 304) configured to form at least part of a display for the apparatus; a coupling configured to couple the first part (301, 311) to the second part (303, 304); at least two actuators coupled to the second part (303, 304) and configured to apply a force to the second part (303, 304) to generate a displacement of the second part (303, 304); and a mode determiner configured to determine a mode of operation of the apparatus in dependence on at least one proximity sensor, wherein the apparatus is configured to: in a hands-free mode of operation, operate the at least two actuators to generate a translational displacement of the second part (303, 304) relative to the first part (301, 311) to provide a first acoustic amplitude of sound from the translational displacement of the second part (303, 304); and in a hands-portable mode of operation, operate a sub-group of the at least two actuators to generate a localized displacement of the second part (303, 304) relative to the first part (301, 311) to provide a second acoustic amplitude of sound from the localized displacement of the second part (303, 304) which is less than the first acoustic amplitude of sound. in a hands-free mode of operation, operate the at least two actuators to generate a translational displacement of the second part (303, 304) relative to the first part (301, 311) to provide a first acoustic amplitude of sound from the translational displacement of the second part (303, 304); and in a hands-portable mode of operation, operate a sub-group of the at least two actuators to generate a localized displacement of the second part (303, 304) relative to the first part (301, 311) to provide a second acoustic amplitude of sound from the localized displacement of the second part (303, 304) which is less than the first acoustic amplitude of sound.