Fits Motorola PMMN4046 Submersible IMPRES Remote Speaker Microphone with programmable orange button, volume high/low toggle switch, and programmable side button. Because it is IP57 submersible it does not have an audio jack. The microphone head is slightly bigger and feels better when using gloves.

Not Audio Jack.
Remote Speaker Microphone
w/Coiled Cord,
Swivel Clothing Clip
Dimensions (W x L x D):60mm x 78mm x 28mm
Operating Temp:-30 C to +60 C

Compatible with MOTOTRBO XPR6300, XPR6350, XPR6500, XPR6550,XiR P8268 series radios