Perfect for anything frosty cold or piping hot. See your drink peeking through your photos, images, or text designs. Dishwasher and microwave safe. Makes a unique gift. Get a set of two for you and a friend. Imported.
Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light.
Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space.