Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Special Edition: Black Binaural, Black Tubing, Black Chestpiece 27" * Tunable diaphragm conveniently alternates between low and high frequency sounds without the need to turn over the chestpiece * Excellent acoustic seal and comfortable fit with patented Snap Tight soft-sealing eartips * Comfortably angled, anatomically correct headset * Patient-friendly, nonchill rim and diaphragm * High performance, single lumen tubing * 3 year warranty