... Acoustic tube design covert from people around Background noise cancel Two way radio accessories throat microphone for Motorola handheld radio GP Series ... connector suit for 3.5mm plug for a pair of standard stereo earphone (not provided ... SP50For CT Series: CT150 , CT250 , CT450 , CT450LSFor PRO Series: PRO1150 , PRO2150 , PRO3150For P Series: P040 , P080, P110, P1225, P1225LSFor DTR Series: DTR410, ...