Features:

• Better audibility of high-frequency sounds
• Single-piece tunable diaphragms let you hear high and low frequency sounds on both the adult and pediatric sides of the chestpiece
• Pediatric side converts to an open bell (Just remove the single-piece diaphragm and replace it with a non-chill rim)
• Open bell stays clear of dirt and debris by covering it with the small diaphragm
• Dual-lumen tubing combines two sound paths in one tube, eliminating the rubbing noise of traditional double tubes
• Not made with natural rubber latex or phthalate plasticizers, next-generation tubing lasts longer with improved resistance to skin oils and alcohol and is less likely to pick up stains