A parcel comprising: - a container having a cavity; - closing means which can adopt, with the container, a closed configuration in which the closing means prevent access to the cavity, or an open configuration in which the closing means allow access to the cavity; - a seal guaranteeing that the parcel is held in its closed configuration; wherein the seal comprises: - an irreversibly degradable part when the parcel passes from the closed configuration to the open configuration; - an electronic radio identification chip; - first communication means comprising an antenna, the first communication means being coupled to the electronic chip and extending at least partially in the degradable part of the seal; characterized in that the parcel integrates an electronic unit distinct from the seal, the electronic unit being housed in a wall, or a bottom, or a cover of the container, the electronic unit comprising: - a transceiver configured to periodically send a radio request capable of being picked up by the antenna then transmitted to the electronic chip, and to receive a return signal produced by the electronic chip in response to the radio request then transmitted by the antenna, the electronic unit being parameterized to detect an absence of return signal; - second communication means parameterized to emit, in the absence of a return signal, an alert signal to a remote receiver; and in that each of the container and of the closing means has a receiving member (21, 31) of the seal, the two receiving members being in immediate proximity to each other in the closed configuration of the parcel, the seal being intended to be coupled to each of the receiving members in the closed configuration of the parcel. - a container having a cavity; - closing means which can adopt, with the container, a closed configuration in which the closing means prevent access to the cavity, or an open configuration in which the closing means allow access to the cavity; - a seal guaranteeing that the parcel is held in its closed configuration; - an irreversibly degradable part when the parcel passes from the closed configuration to the open configuration; - an electronic radio identification chip; - first communication means comprising an antenna, the first communication means being coupled to the electronic chip and extending at least partially in the degradable part of the seal; characterized in that the parcel integrates an electronic unit distinct from the seal, the electronic unit being housed in a wall, or a bottom, or a cover of the container, the electronic unit comprising: - a transceiver configured to periodically send a radio request capable of being picked up by the antenna then transmitted to the electronic chip, and to receive a return signal produced by the electronic chip in response to the radio request then transmitted by the antenna, the electronic unit being parameterized to detect an absence of return signal; - second communication means parameterized to emit, in the absence of a return signal, an alert signal to a remote receiver; and in that each of the container and of the closing means has a receiving member (21, 31) of the seal, the two receiving members being in immediate proximity to each other in the closed configuration of the parcel, the seal being intended to be coupled to each of the receiving members in the closed configuration of the parcel. - a transceiver configured to periodically send a radio request capable of being picked up by the antenna then transmitted to the electronic chip, and to receive a return signal produced by the electronic chip in response to the radio request then transmitted by the antenna, the electronic unit being parameterized to detect an absence of return signal; - second communication means parameterized to emit, in the absence of a return signal, an alert signal to a remote receiver; and in that each of the container and of the closing means has a receiving member (21, 31) of the seal, the two receiving members being in immediate proximity to each other in the closed configuration of the parcel, the seal being intended to be coupled to each of the receiving members in the closed configuration of the parcel.