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1. A drinking vessel comprising: a first attachment interface; an electronic display unit having a display screen and comprising a second attachment interface; and a remote control comprising remote control circuitry within a remote control housing; wherein: the first and second attachment interfaces are configured to cooperate to releasably attach the electronic display unit to the drinking vessel; the remote control is operable to wirelessly transmit instructions to the electronic display unit, including instructions relating to a content displayed on the display screen; the remote control housing is resistant to ingress of liquid when submerged in liquid at least up to the maximum depth containable by the drinking vessel; and the remote control housing is resistant to heat so as to protect the remote control circuitry from damage when the remote control housing is submerged in liquids heated to up to 100 degrees Celsius.
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