A cordless endoscope assembly includes a housing, an endoscope tube and an eyepiece. Electronics are housed in the housing and operable to operate one or more light sources in the endoscope, the electronics including one or more batteries and a printed circuit board. The housing includes a connector configured to removably couple with a cannula connector of a cannula when the endoscope tube is inserted through the cannula. The cordless endoscope is a disposable single use endoscope that can optionally be sterilized with an ethylene oxide (EtO) sterilization process.
