SPM-3300 Series 3-Wire Lapel Mic Kit w/Twist Connect Acoustic Tube Earphone. 3-wire Kits have separate PTT & Mic units for COVERT/DISCREET use. The SPM-3300 Kit Includes Bud and Semi-custom Ear Mold.
New Vertex radios with Multi-pin connector including: VX-821, VX-824, VX-829, VX-921, VX-924, VX-929, VX-P821, VX-P824, VX-P829, VX-P921, VX-P924, VX-P929, VX-P870 Series, VX-P970 Series (all P25), and VXD-720 Digital DMR models.
