Heavy Duty Headset, Headset Style Behind-the-Neck, Headset Type Rigid, Noise Reduction Rating 24 dB, Dielectric No, Intrinsically Safe Yes, Connection Type Wired for APX Series, Wired Connection Type Motorola Proprietary, Cup Color Black, Two-Way Radio Communication Type Listen, Talk, Compatible with Series APX, DGP, DP, SRX, XIRP, XPR, Band Color Black, Button Functions Push To Talk, Compatible with Brand Motorola