Abstract: A sound-reproducing package comprises a housing for storing a consumer product, a disposed therein sound signal reproducing unit electronically connected to a power supply and a loudspeaker, at least one external activation sensor connected to the sound signal reproducing unit, and a package state sensor operative to form a signal corresponding to an open or closed state of the package, or the presence or absence of a consumer product in it. The package state sensor is connected to the sound signal reproducing unit operative to select from its memory sound signals for reproducing depending on the signal from the package state sensor.

Abstract: A sound-reproducing package comprises a housing for storing a consumer product, a disposed therein sound signal reproducing unit electronically connected to a power supply and a loudspeaker, at least one external activation sensor connected to the sound signal reproducing unit, and a package state sensor operative to form a signal corresponding to an open or closed state of the package, or the presence or absence of a consumer product in it. The package state sensor is connected to the sound signal reproducing unit operative to select from its memory sound signals for reproducing depending on the signal from the package state sensor.

Abstract: The method for volume control comprises pre-setting of a higher and lower volume levels prior to the volume control; adjusting the volume at the lower pre-set level upon the detection of human voices, and at the higher pre-set level in the absence of human voices. Analysis and a control unit of the volume control system is operative to form at its output a control signal providing the volume decrease in the audio reproducing unit to the lower pre-set level upon the detection of human voices in accordance with a first pre-set time function, and the volume to the upper pre-set level in the absence of human voices in accordance with a second pre-set time function.

Abstract: A signaling cap device comprises an audible message reproducing unit, a switch, a power supply, and a former of an audible message number, whereas the audible message reproducing unit is operative upon removal of the cap to reproduce one of N audible messages recorded therein depending on the message number.

Abstract: A signaling cap device comprises an audible message reproducing means, a switch, a power supply, and a former of an audible message number, whereas the audible message reproducing means is operative upon removal of the cap to reproduce one of N audible messages recorded therein depending on the message number.