Select Radio Model 
Radio Supplies SN130-Y4 Single Wire w/PTT for Vertex 1 Pin Connection
SN130-Y4 Vertex Single Wire Lok System:
This SN130-Y4 is a Single Wire Surveillance Earpiece. The SN130-Y4 features Snap Lok System which allows the user different options for ear piece style, Partial Coiled Cord, Snap Lok, In-Line PTT, Clothing Clip Double Mounting Screws and Single Pin Radio Connector for Vertex Radios. The SN130-Y4 is only the connector and wire section you must purchase the desired ear piece. Look for ear piece styles with following part numbers- DR110-SN D Style Over the Ear, EB210-SN Rotating Ear Bud, EB310-SN C Ring Swivel, SE110-SN Acoustical Clear Tube
Fits: EVX261, EVX530, EVX531, EVX534, EVX539, VX130, VX160, VX180, VX210, VX210A, VX230, VX231, VX260, VX261, VX264, VX300, VX350, VX351, VX354, VX400, VX410, VX417, VX420, VX426, VX427, VX450, VX451, VX454, VX459