CES 2018 kicks off with oddball gadgets

This small, internet-connected countertop dishwasher called Tetra is designed for apartments tight on space.

From water heater company Heatworks, the gadget doesn't require plumbing. Instead, it connects to an electrical outlet.

Its cycle is less than 10 minutes long and it can clean two full place-settings at a time. Tetra also works with a corresponding app, which alerts you when the cycle is done. You can start it remotely or change its settings via the app, too.

The dishwasher -- expected to cost under $300 -- will hit the market by the end of the year.