The omnipresence of computers and mobile communications apparatus has led to digital technology increasingly becoming a part of our environment. Invisible wireless networks have altered our ways of communicating, working, learning and playing. They have even taken on an important role in the creation of our identity and our relationships with others. In the course of this development, interest in the apparatus has increasingly shifted from the technology itself to the role it plays in shaping our experience. The artists in this exhibition investigate the invisible world of sound waves and frequencies and electromagnetic fields. In all cases they touch on issues concerning the radiation that is ever-present, but imperceptible to our senses. They make use of technologies that are present around us, but invisible, and by playing with electromagnetic waves and different frequencies their works surprise us with an abundance of information and possibilities.