A product for holding a tobacco material or a tobacco substitute material includes a body defining a storage environment and an electronic device. The electronic device includes an input means to generate an input signal from an external stimulus; an output means to generate an output signal in response to the input signal; wherein at least the output means is arranged on a substrate; and wherein a protective layer is arranged to at least cover the substrate and the output means so as to prevent egression of compounds therefrom to the tobacco material or tobacco substitute material within the storage environment. The electronic device includes an appropriately adapted protective layer. A user may therefore assess the freshness and quality of a tobacco material within the product, without any risk or altering the properties of the tobacco material via egression from the electronic device to the storage environment.