Remote Speaker Microphone Dimensions:55mm x 60mm x 27mm with Coiled Cord, Swivel Clothing Clip,and 3.5mm Audio ... Jack. Fits Motorola PMMN4046 Submersible IMPRES Remote Speaker Microphone with programmable orange button, volume high/low toggle switch, ... is slightly bigger and feels better when using gloves.Compatible with MOTOTRBO XPR6300, XPR6350, XPR6500, XPR6550,XiR P8268 series radios ...