Icom HM166LA 2-Pin Right-Angle Earphone Microphone 900mm

The Icom HM-166LA is a genuine OEM earphone microphone designed for Icom land mobile and marine portable transceivers fitted with the 2-pin right-angle connector interface. Combining a discreet in-ear receiver with an integrated push-to-talk microphone on a single cable assembly, the HM-166LA lets operators keep both hands free while maintaining full duplex-ready voice communication. The right-angle connector minimizes mechanical stress at the radio jack — a practical advantage in high-movement field environments such as security, hospitality, public safety support, and marine duty. With a transceiver cable reaching 900 mm and a separate earphone branch of 450 mm, the accessory accommodates a natural body-worn radio position without straining the connector. As a factory Icom accessory, it is matched and validated against the radio models listed in the compatibility section below.

Key features & benefits

• Right-Angle 2-Pin Connector — The right-angle orientation of the 2-pin connector reduces lateral stress on the radio's accessory jack during active movement, extending both connector and jack service life in daily-use deployments.
• Dual-Segment Cable Architecture — A 900 mm cable runs from the radio to the in-line microphone/PTT unit, with a separate 450 mm cable branch running to the earphone — confirmed lengths sourced from the official Icom America product page.
• Integrated PTT and Microphone — The in-line control unit houses both the push-to-talk button and the microphone element, enabling covert or hands-free style operation without requiring the operator to handle the radio directly.
• Broad Multi-Series Compatibility — Validated by Icom for use across a wide range of VHF, UHF, and digital portable transceiver families including the F1000/S/T–F2000/S/T, F1100D–F2100D, F3230D–F4230D, F3210D–F4210D, F3001–F4001, F1721–F2721/F2821, F14/F24, F33G/F43G, F43TR, F3021/F4021, F3011/F4011, V3MR, and V10MR series.
• Genuine OEM Accessory — Manufactured by Icom and sold through authorized channels, ensuring electrical compatibility and build quality consistent with the host transceiver's design specifications.