Listen-Only Earpiece, Product Type Listen-Only Earpieces, Compatible Radio Brand Motorola, Compatible Radio Series APX, Compatible Radio Manufacturer Model Number APX, HMN4101, HMN41014, HMN4103, Earpiece Style Earbud, Number of Ears One, Number of Wires 1, Push To Talk No, Microphone Location Not Applicable, Radio Connector Type 8 mm, Earpiece Connection Type Acoustic Tube, Earpiece Color Clear, Volume Control No, Features Acoustic Tube, Material Metal, Polycarbonate