CRADLE SPEAKER DEVICE, PORTABLE TERMINAL, AND JACK

摘要

PROBLEM TO BE SOLVED: To provide a cradle speaker device of electromagnetic induction type capable of allowing a portable terminal to reproduce a high-quality amplified sound with high stability.SOLUTION: A cradle speaker device 100 includes: a placement section 106 on which a touch panel operation type portable terminal 200 is placed, the placement section 106 having a built-in jack 203 containing a transmission coil 207 wound around the outer periphery thereof so that a sound signal to be reproduced can be input in the transmission coil 207; a reception coil 108 disposed adjacent to the jack 203 of the portable terminal 200 in a state where the portable terminal 200 is placed on the placement section 106 with a touch panel 202 facing outward; an audio amplifier 117 for amplifying the sound signal input in the reception coil 108 by an electromagnetic induction of the transmission coil 207; and a speaker 110 for outputting the sound signal amplified with the audio amplifier 117.