PURPOSE: A speaker module of a portable terminal is provided to transfer a grand acoustic sound to a user by vibrating a main body housing or an LCD module. CONSTITUTION: A variable member(120) is included in the inner side of a speaker housing and varies a length according to magnetic force. A coil part(130) is interposed between the speaker housing and the variable member. A magnetic force is offered in order to vary the variable member. A vibration member(140) is included in the variable member. According to the variable of the variable member, vibrations are transferred to the outside.
