An eyewear set is provided, including: an eyewear； and a signal processing unit that is attachable to and detachable from a bridge of the eyewear, where the signal processing unit includes: an enclosure； a first electrode and a second electrode that are provided outside the enclosure and detect a biomedical signal of a wearer who is wearing the eyewear； a signal processing portion that is arranged inside the enclosure and processes the biomedical signal； a transmitting portion that is arranged inside the enclosure and transmits a processing result according to the signal processing portion to an external device； a power supply portion that is arranged inside the enclosure and supplies electrical power to the signal processing portion and the transmitting portion； and a mounting portion that attachably and detachably mounts the enclosure on the bridge.
