A light and sound machine with headphones and strobe light goggles. A<unk>  (aka brain machine or light and sound machine) uses pulsing rhythmic sound, flashing light, or a combination of these, to alter the frequency of the user's brainwaves.<unk> s can induce deep states of relaxation, concentration, and in some cases altered states of consciousness, which have been compared to those obtained from meditation and shamanic exploration. Photic<unk> s work with flickering lights embedded in sunglasses or a lamp that sits on a tripod above your head or facing you. You then "Watch" with your eyes closed. The process applied by some of these machines is said to induce brainwave synchronisation or entrainment.
Mind machine
Hug machine
Pharmasave
Reading machine
X-ray marker
Nextstrain
Air ioniser
Veneer 