Mains supply here is 230V at 50Hz, using plug types C, H, M.
A plug adapter changes the shape of the pins and nothing else. A single-voltage kettle from a 120V country will not work safely on a 230V supply no matter which adapter you use — check the label on the appliance for a dual-voltage range before you pack it. More on travel kettles and voltage →
What to expect in the room
Upper-end properties dominate the market and capsule machines are common in them, alongside kettles with tea service. Arabic coffee is often offered on arrival rather than left in the room.