Paediatric & Infant Combined chest piece Precisely Machined to exacting tolerance from surgical stainless steel for outstanding performance and rugged durability. Ultra Sensitive Diaphragm for greater amplification. Color coordinated Non - Chill bell and snap On Ring to retain diaphragm for patient comfort. Deluxe PVC ear tips for the ultimate in wearing comfort and acoustic seal. Complete with an accessory case containing 2spare diaphragm and one set of ear tips. Single Lumen Tubing. Includes ID Tags. Three Year Warranty.