Speaker Microphone, Product Type Speaker Microphone, Compatible Radio Type Vehicle-Mounted, Compatible Radio Brand Icom, Compatible Radio Series F3162, F4162, Compatible Radio Manufacturer Model Number M88, Compatible Radio Grainger Model Number None, Earpiece Jack Size Not Applicable, Radio Connector Type 9-Pin Multifunction, Noise Prevention Not Applicable, Push To Talk Yes, Intrinsically Safe No, Keypad Included No, Material Plastic, Cord Length 18 in, Waterproof Yes, IP Rating IP67