HM-183LS Waterproof Speaker Microphone IPX7 for IP-100H/501H/503H/ ID-51E

For use with the IP100H IP Handset, IP501H/IP503H LTE Handset and the ID-31E/ ID-51E D-STAR handportables.

The HM-183LS is waterproof even when attached to any of these radios.