1.Remote Speaker Microphone Compatible with Icom Radio: Replacement for IC-F3000 F3001 F3002 IC-F12 F15 IC-F16 IC-F33 IC-V80 V85 IC-F3002 IC-F3001 F3021 IC-F3023 IC-F3031 IC-F4001 IC-F4002 IC-F4021 IC-F4031 F4101 V8 V80 V80E V82 V85. 2.Heavy duty construction: Radio microphone with heavy duty construction and impact-resistant engineering Polycarbonate plastic housing, this speaker microphone is built for tough mission critical use and is built to withstand knocks and bumps. 3.Super strength cable: Speaker mic with TPU (Thermoplastic polyurethane) rubber jacket bring super bending strength, abrasion resistance and scratch resistance. Strain relief structure made of TPU rubber bring stronger bending strength and longer lifespan. 4.Clear sound transmission: Speaker microphone with high quality micro speaker, noise cancellation microphone, high purity copper wire and anti-Interference circuit design, this speaker microphone enable voice to be transmitted clearly even in loud environments. 5.Potable Speaker Mic: Clip-on speaker mic combined with PTT (Push to Talk) button, 3.5mm audio Jack for discreet communication.