from the printed circuit board 140 by a small distance flow of air is enhanced by the second vent 141 on the printed circuit board 140 namely air elasticity between the speaker module 130 and the printed circuit board 140 is enhanced additionally by the second vents 141 on the printed circuit board 140 a sound box under the speaker module 130 is extended to the bottom casing 122 of the host 120 accordingly when the speaker module 130 operates a diaphragm not shown in the speaker body 131 is easily vibrated because of the increased space of the sound box or air elasticity namely resonance is easily generated between the diaphragm in the speaker body 131 and air increasing volume from the speaker module 130 and promoting audio quality provided thereby moreover as shown in fig2 a sound box body 150 can be if possible disposed between the second vent 141 of the printed circuit board 140 and the bottom casing 122 of the host 120 accordingly resonance is also easily generated between the diaphragm in the speaker body 131 and the air further promoting the audio quality provided by the speaker module 130 the disclosed electronic device with audio capability is not limited to a notebook computer and may be a pda or mp3 having only a host the structure of the host of the pda or mp3 can be the same as that of the host 120 of the notebook computer 100 in conclusion volume from the speaker module 130 of the notebook computer 100 with improved audio output or electronic device.