i.safe MOBILE Tri-Band Strap for HMT-1/HMT-1Z1

i.safe MOBILE Tri-Band Strap for HMT-1/HMT-1Z1.The 3-point head loop provides a third fixation for the i.Safe HMT-1 on the rear side and can be "threaded" between the back of the head pad and the HMT-1. Simply snap the two clips into the slots provided with fine force.