| 摘要 |
The present invention relates to an electronic stamp to be used for an electronic stamp service in an offline store, an electronic stamp service providing system for providing the electronic stamp service by using the electronic stamp, and a method therefor, the electronic stamp comprising: a stamp housing; a sound wave generation module inside the stamp housing; and an acoustic hole through which a sound wave of the sound wave generation module is emitted to the outside of the stamp housing, thereby enabling the electronic stamp service of which reliability and stability have been improved to be provided. |
