At 911gear.ca we sell Code Red listen only headsets. We sell with either a 2.5mm jack for kenwood or a 3.5mm for motorola. We sell the listen only Code Red Silent Jr 2.5mm Pack Earpiece - 14" Cord - Kenwood, Code Red Silent 2.5mm Pack Earpiece - 26" Cord - Kenwood, Code Red Silent Jr 3.5mm Pack Earpiece- 14" Cord - Motorola, Code Red Silent 3.5mm Pack Earpiece - 26" Cord - Motorola. The short code red silent jr packs have 14" cords plug into the mic that's attached to your radio. The Code red pack version has a 26" cord that plugs into the radio.