You can drink from the Litecup just like an open cup, although you will need to start the flow with a small suck. Once going the valve will allow the drink to flow out easily. It automatically seals once your lips leave the rim.

Activate Litebase by pushing the on/off button on base. Once activated, The beaker's light sensitive base will switch on and off automatically in low light and will last up to three months in normal use. Litecup can be washed in a dishwasher.