The PillowTalk is basically a speaker on a wire that you tuck under your pillow. It enables insomniacs, people who get up in the night for their children, or people who have a different body clock from their partners, to listen to the radio without disturbing the sleeper next to them. You can go to bed learning a different language or listening to your favourite audio book. The unit is about the same size as a large pair of earphones and is suitable for any radio, radio cassette, clock radio or other equipment fitted with a 3.5mm headphone socket.