3m Littman Master Card Black Stethoscope Wrist BP Monitor * Plastic arms provide added Style:Right Ear * Plastic arms provide added comfort Working Temperature: 0 to 40 C Special procedures adaptor for difficult site or pediatric ausculation * Available in a selection of classic tube colors * 7 year warranty Black 27 * The ultimate acoustical stethoscope * Tunable diaphragm conveniently alternates between low and high frequency sounds without the need to turn over the chestpiece * Handcrafted sold stainless steel chestpiece * 2 in 1 tube design eliminates tube rubbing noise * Portable convenience of a single sided chestpiece * Excellent acoustic seal and comfortable fit with patented Littmann Snap Tight soft sealing eartips * Comfortably angled anatomically correct headset * Patient friendly nonchill rim and diaphragm