ElectroMedical Research is introducing two modules for the Handspring Visor. The Delta Module is to be used by persons desiring rapid stress relief or control of pain, by bringing about a peaceful and tranquil state of mind. The Gamma Module is to be used by persons desiring wakefulness, control of pain, improved eye/hand coordination, improved focus, and concentration. These devices work by putting a very small current similar in strength to our body’s natural current across the brain by way of very comfortable wetted earclips.