RLN4941A: This RLN4941A is our Replacement for the Motorola Original RLN4941A Listen Only Earpiece. This unit must be connected to the RSM. Comes in 9"/18" at rest Black Coiled Cord and Translucent Acoustical Ear Piece Tube. •Two models available: ◦Regular 18" (at rest) with coil ◦Short 9" (at rest) with coil, •Kevlar coil cable •L-shape or straight jack, 2.5mm or 3.5mm, •OEM compatible replacement parts at incredible prices, •Three year warranty...Used by thousands of law enforcement agents, security companies, casinos and retailers world wide. Fits Most All Remote Speaker Mics.