Code Red Headsets SHIELD 2.5 Shield 2.5mm D-Ring Earpiece Engineered to last, code RED products are available around the world and are backed by a solid warranty program. Code RED offers a wide range of products from lightweight ear pieces to heavy-duty headsets with noise canceling microphones. Code Red Headsets SHIELD 2.5 Shield 2.5mm D-Ring Earpiece Features: Listen only earpiece with a miniature speaker that fits comfortably over the ear. Especially useful in noisy environments. Very popular with emergency service personnel. "D" Ring design can be worn on either ear. Nothing inserts into the ear. Since nothing is placed inside the ear, it offers safety as well as improved hygiene when it is necessary to share earphones. 40 cord 2.5 mm connector