Kit includes: 1 NNT20 Intercom and 1 NCR2 Car-to-Car Radio, 2 Pair NH100 In-Helmet (Stereo) Headsets, 4 HCF4 (Front/Rear) 4Æ (EU: 121,92 cm) coil cables connecting the headsets to the HEC10 extension cables, 2 HEC10 (Front) 10Æ (EU: 304,8 cm) extension cables connecting the intercom to the HCF4 coil cables to headsets,1 RTI300 intercom to radio connection cable, 2 16' (EU: 487,68 cm) extension cable and 1 APKG1 Dual Band Antenna with multiple mounting options Intercom High fidelity stereo sound for smart phone or other music source VOX (Voice Activation) Separate front inputs for music and smartphones Two front and two rear headphone inputs RF shield housing Compatible with car-to-car radio or handheld radio Car-to-Car Radio 200 programmable memorized Channels, identified by editing name High quality 20 W dual band radio (UHF/VHF) Frequency VHF: 136-174MHz / UHF: 400-480MHz In-Helmet Headset Noise-cancelling smart mic High-fidelity bass-enhanced speakers Flexible positioning mic for VOX (Voice Activation). INTERCOM AND RADIO KIT 4 SEAT IN HELMET