The invention discloses an electronic device which comprises a case, an input and output module, a vibration module and piezoelectric elements. The input and output module is arranged in the case andcomprises a packaging shell, an infrared light supplement lamp, a proximity infrared lamp, a proximity sensor and a light sensor. The packaging shell comprises a packaging base plate, and the infraredlight supplement lamp, the proximity infrared lamp and the light sensor are packaged in the packaging shell and carried by the packaging base plate. The infrared light supplement lamp and the proximity infrared lamp can emit infrared light at different powers, the proximity sensor is used for receiving reflected infrared light to conduct infrared distance measurement, and the light sensor is usedfor receiving visible light to detect the light intensity. The vibration module is installed on the case, the piezoelectric elements are combined with the vibration module and spaced with the input and output module, and the piezoelectric elements generate deformation when electric signals are applied to the piezoelectric elements to enable the vibration module to vibrate. The input and output module is high in integration and small in size, the electronic device achieves sound propagation through bone conduction by adopting the piezoelectric elements and the vibration module, and therefore the privacy of call content can be effectively guaranteed.