I am writing a repair manual for an electronic device and I am looking for a specific word to refer to the outer part of any electronic device such as a laptop/phone/camera/TV/radio... This "housing" is usually made of plastic or metal and is the part that the user touches when holding the device.
I was thinking that some options could be "housing"/"case"/"casing"/"enclosure"/"shell"/"box". What is the correct word? I am not sure about some of these as they could be used to refer to the "case" of the device itself or to a "case" that you can add on top of the device for protection/aesthetics. I am looking for a word that specifically refers to the "case" of the device itself.