Lightweight Headset, Single-muff with Boom Mic, Material Plastic/Metal, Length 5 In, Width 4 In, Height 1 In, For Use With 4KYC3, 4KYC4, 4KYC5, 4KYC6, 4KYC7, 4NPD8, 4NPE1, 4NPE2 Kenwood ProTalk 2-Way Business Radio AccessoriesGenuine Kenwood accessories enhance the functionality of ProTalk Business Radios.