To use a single electronic apparatus casing for both of handy use and stationary use while preventing erroneous operation of a push-button switch during use for stationary use.

In this electronic apparatus main body 21, an operation panel 23 is arranged on one face of a casing 22 resined, while an antenna part 24 is arranged on the other face, and a grip part 25 is attached movably to the side part of the casing 22. In an operation panel 23, push-button switches 31a-31e and a crystal liquid display part 32 are arranged, and projection parts 34 longer than the push-button switches 31a-31e are arranged in both side parts. In the side part of the casing 22, a connector 35 is arranged to be positioned on the inside of the grip part 25. In use of the electronic apparatus main body 21 for handy use, the grip part 25 is attached. In stationary use, the grip part 25 is removed and the electronic apparatus main body 21 is placed on a support base with the operation panel 23 set on the lower side, and the push-button switches 31a-31e are prevented from being brought into contact with the support base.