Kit includes: 1 NNT10 Compact Intercom and 1 NCR2 Car-to-Car Radio, 1 Pair NO303 Over-the-Head (Stereo) Headsets, 2 PSC41 (PTT) push-to-talk cables, 2 HCF4 (Front) 4' (EU: 10,16 cm) coil cables connecting the headsets to the HEC10 extension cables, 2 HEC10 (Front) 10' (EU: 25,4 cm) extension cables connecting the intercom to the HCF4 coil cables to headsets and 1 APKG1 Dual Band Antenna with multiple mounting options. Intercom. High fidelity stereo sound for fits 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. Over-the-Head Headset. Easy to use and reach volume knob and Push to Talk (PTT) Button. Poly-coated voice activated boom mic. Large noise cancelling comfortable ear seats. Soft pillow type over-the-head cushion.