Aike® 3.5mm Surveillance Plug Receiver/Listen Only Audio Earpiece for Two-Way Radio, Transceivers and Radio Speaker Mics $8.99 B01C8EANIE
Aike® 2 pin PTT MIC Covert Acoustic Tube In-ear Earpiece Headset for Motorola Radio GP300,GP308,GP68,GP88,GP88S $8.99 B01CCHIVEA
Aike® PTT MIC Covert Acoustic Tube In-ear Earpiece Headset for Vertex EVX-531 534Radio $11.99 B01CZDDKW4