... Radio Headset Intrinsically Safe Aviation Headset Replacing for BDN6636,BDN6645,ENMN4016,AZRMN4032 Model No:PTE-750Color:Black, Yellow,RedWarranty:Full 12 ... Radio Headset Intrinsically Safe Aviation Headset Replacing for BDN6636,BDN6645,ENMN4016,AZRMN4032(PTE-750)