Earpiece, Product Type Earpieces, Compatible Radio Brand Kenwood, Compatible Radio Series ProTalk PKT-23, Compatible Radio Grainger Model Number 20PF27, Earpiece Style Ear Hook, Number of Ears One, Number of Wires 1, Push To Talk Yes, Microphone Location Extended from Earpiece, Number of Surveillance Kits Included 1, Radio Connector Type 3.5 mm Plug, Earpiece Connection Type Wired, Earpiece Color Black, Volume Control No, Material Polycarbonate, Includes Push-to-Talk Microphone with Ear Clip