Brand new Uniden R1, R3, R4, R7 and R8 Radar Detector Replacement speaker 1W 16Ohm 28MM USA made High Performance Replacement Speaker with wires and connector ready to swap, factory replacement. Speaker replacement for Uniden R1, R3, R4, R7 and R8 Radar Detector Direct Plug In Replacement, No Soldering Required Diameter: 28mmSpeaker: 16 Ohm, 1W