An electronic apparatus includes a front case, a rear case whose peripheral portion is brought into engagement with a peripheral portion of the front case and an electrostatic capacity type sensor portion which is encompassed by the front case and the rear case. A primary conductive portion, which is brought into engagement with the sensor portion for electrical connection, is formed on part of an inner surface of the peripheral portion of one of the cases which extends to the engagement portion. By adopting this configuration, the electronic apparatus can be fabricated easily and the operation of a touch switch provided in the electronic apparatus can be stabilized.