An electronic device includes a casing, a speaker enclosure and an actuating and sensing module. The casing has an opening. The speaker enclosure is disposed within the casing to enclose a speaker. The speaker enclosure is in communication with the opening of the casing. The actuating and sensing module is disposed within the speaker enclosure. The actuating and sensing module comprises a fluid transportation device and a sensor. The fluid transportation device is driven to transport a fluid from outside the casing into the speaker enclosure through the opening of the casing to make the fluid sensed by the sensor.