ICOM HM222 Speaker Microphone
Free
The HM-222 is a portable speaker microphone resistant to water.
Use with IDAS radios IC-F3400 and IC-F52D series
This accessory is greatly used with the ICOM IC Sat100 radio
https://www.satmodo.com/product/icoms-ic-sat100-land-mobile-radio-lmr/