In general, section 1245 property refers to property that is not real estate. This includes property such as computers, cell phones, cameras, furniture, machinery, tools, equipment, or appliances.
In particular, the IRS defines section 1245 property as "any property that is or has been subject to an allowance for depreciation or amortization" and from specific types of property including all types of personal property, other tangible property, and some real property. For further detail, please see
section 1245 property defined in IRS
Publication 544 .