Bodyguard Earpiece with Microphone & PTT Switch, Assembled multi-pin connector. 

Adjustable earloop split-wire security kit for left or right ear usage. PTT button/microphone combo with steel clothing clip. 

For Motorola PR1500, XTS2500, XTS3000, XTS3500, XTS5000, HT1000, JT1000, MT2000, MTS2000, MTX8000, MTX9000,

For EF Johnson 51SL, 5000, 5100, 7700 series, etc.

No Adapter required.

This earpiece/microphone enables you to talk and listen without having to remove the radio from your belt.