Earpiece, Product Type Earpieces, Compatible Radio Brand Motorola, Compatible Radio Series BPR40, CP200d, Compatible Radio Manufacturer Model Number HK1847A, Compatible Radio Grainger Model Number 4PJD4, Earpiece Style D-Ring, Number of Ears One, Number of Wires 1, Push To Talk Yes, Microphone Location Shirt/Lapel, Radio Connector Type M1, Earpiece Connection Type Wired, Earpiece Color Black, Cord Length 48 in, Volume Control No, Includes Microphone, Overall Length 1 5/8 in, Overall Width 1/4 in