| 摘要 |
A postcard with sound recording and a player therefor allows discrete, even multiple sending of a content and listening to the content via an adequate player and a security pin. The postcard of the invention is made as an optional postcard ( 1 ), one side of which is optionally graphically designed, for instance bearing a photo, and on the other side there is a field for an address and a message field, where an electronic device ( 2 ) is placed, which is intended to receive, store and transmit a voice message and consists of a microphone, a processing unit, a memory unit and a power source, e.g. a battery, whereby the electronic device ( 2 ) is linked to a manual switch ( 3 ) for message recording and a pin ( 4 ) that is also linked to a sound player ( 5 ) and a set of switches ( 6 ) for the entry of a security pin into the electronic device ( 2 ), whereas the entered security pin is simultaneously also the key for transmission of the sound recording in the player ( 5 ), whereas switches ( 3 and 6 ) as well as the microphone of the electronic device are covered each by two sheets, namely a directly accessible sheet ( 7 ) and a security sheet ( 8 ) lying underneath the sheet ( 7 ), said sheet ( 8 ) being replaceable.
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