Our Deluxe-lite combines ultra lightweight design and an affordable price along with superior acoustic response.- Solid machined lightweight aluminum adult chestpiece - Aluminum switchable/selector stem for either 1?" diameter bell or highly sensitive 1¾" diaphragm - Non-chill bell and diaphragm retaining rim for patient comfort - Anodized aluminum thread-on and multi-directional inner spring binaural - Finest moulded, yoked single-lumen 22" PVC tubing - Color coordinated retaining and non-chill rings - Durable hard plastic, pair of small and large all weather soft eartips - Weighs 3.4 oz. - Overall length 30" - Limited lifetime warranty |