Exact Fit for Yaesu Radios The MH31A8J hand microphone is designed as a direct replacement for the original Yaesu microphone, ensuring compatibility with a wide range of Yaesu transceivers. Works seamlessly with FT450/D, FT817/ND, FT818, FT857/D, FT891, FT897/D/DM, FT900, FT991, and FT991A models. No setup or adjustments required for operation. Construction for Reliable Communication Built to meet the exact specifications of Yaesu HF and HF/VHF transceivers, the MH31A8J delivers clear, consistent audio for both casual and critical communications. Designed for recent models including the FT991 and FT991A, it meets the performance demands of experienced amateur radio operators. Ergonomic and FieldReady Design Wide, glovefriendly pushtotalk (PTT) button allows quick activation in all situations Integrated UpDown tuning and Fast Tuning controls enable easy frequency adjustments without reaching for the radio Nonslip grip ensures secure handling during mobile or outdoor use Sturdy, antidetach clip keeps the microphone connected and secure, even in rugged environments Key Benefits Compatible with multiple Yaesu HF and HF/VHF transceivers for versatile use across your radio fleet Improved operational efficiency with onehanded control of essential functions Reliable build quality to withstand daily use at home, in the field, or in mobile installations Practical Use Scenarios Portable field operations: Maintain clear communication while adjusting frequencies on the move, even when wearing gloves Mobile installations: Secure antidetach clip and ergonomic grip provide stability during driving or offroad use Emergency communications: Quick access PTT and tuning functions allow rapid response without distraction from missioncritical tasks Specifications Type: Hand microphone for Yaesu HF and HF/VHF radios Compatible Models: FT450/D, FT817/ND, FT818, FT857/D, FT891, FT897/D/DM, FT900, FT991, FT991A Functions: Wide pushtotalk, UpDown tuning, Fast tuning Grip: Nonslip ergonomic design Clip: Antidetach for secure connection The MH31A8J combines precision fit, operational convenience, and durable construction to deliver dependable performance for amateur radio operators in any setting.