This Standard Horizon VHF Radio Microphone is compatible with HX40, HX210, HX300, HX400, HX380, and HX890 Handheld VHF Radios.• Compatibility: Standard Horizon Handheld VX-6R, HX40, HX210, HX380, HX400, HX890 VHF Radios• Push To Talk: Left Side Push To Talk• Color: Black Water Resistant Speaker Mic Jack Connection Black