M-168LWP Waterproof Speaker Microphone. The HM-168LWP is a waterproof and dust-tight (IP67) speaker microphone for use with various Icom two-way radios.
The HM-168LWP is compatible with the IC-F29SR(2), IC-F29DR(2), IC-F1000 series, IC-F1000D series and IC-F1100 radios series as well as many other Icom radios with 2-pin audio accessory connectors with 2 retaining screws.