To provide a mobile phone capable of suppressing heating at a dense circuit part is suppressed by isolating a circuit board.

An electric board 3 on which a radio circuit 6 that generates much heat is mounted and a charging circuit board 5 on which a charging circuit 2 that generates much heat are arranged across a battery 4. Congestion of heating parts mounted on a lower case 1b is avoided, to prevent partial rising in temperature of a mobile phone 1. A flexible board 11 is connected to the charging circuit board 5 by way of a surface of the battery 4 which is a rear surface side when viewed from a surface of the electric board 3 on which a connector 9 is mounted. So even if the lower case 1b is deformed, the flexible board 11 is pulled from both boards, thereby preventing coming off of the connector 9 from the electric board 3.