Best Seller | RITRON RSM-3XA Radio Remote Spkr/Mic Speaker Microphone, Product Type Speaker Microphone, Compatible Radio Type Handheld, Compatible Radio Brand Ritron, Compatible Radio Series Jobcom JBS, Compatible Radio Grainger Model Number 4RB57, 4RB58, 4RB59, 4RB61, 4RB62, 4RB67, Earpiece Jack Size... ... more RITRON RSM-3XA Radio Remote Spkr/Mic Speaker Microphone, Product Type Speaker Microphone, Compatible Radio Type Handheld, Compatible Radio Brand Ritron, Compatible Radio Series Jobcom JBS, Compatible Radio Grainger Model Number 4RB57, 4RB58, 4RB59, 4RB61, 4RB62, 4RB67, Earpiece Jack Size... | | $58.79 go to store |