9 mm cup electrodes secured to a wire clip that attaches securely to the ear. Sold in pairs, FDA compliant, conforms to DIN 42802. (Use cotton booties (see below) and electro mist solution (page 18) for paste free earclip application!) Used with BrainMasters serial numbers 202 and above. 2 Earclips with 1.5 mm jacks.
