Color: Combo Pack - Blacks AVPH3RDO combines the Decibullz Noise Reduction Radio Headset Adapter with the AVPH3 Concealed Headset to create a perfect fitting two-way radio earpiece that will stay in place no matter what you are doing. Using a patented thermoplastic, the fitting process is quick and easy. Simply heat the molds in hot water, shape them to your ears, then snap the adapter and earpiece on to your concealed headset. When done, you will have a perfect fitting earpiece made just for you and provides clear radio communication even in noisy environments! The AVPH3 has a 1 -Year Limited Warranty through.