PCI Race Radios 4 Link Pro Elite Intercom 2 Boost your in-car communication experience with the 4 Link Pro Elite Intercom from PCI Race Radios. This universal kit can adapt to varying locations or utilize PCI Race Radios' mounting solutions, integrating seamlessly with existing helmets and headsets. Features: 4 Link Pro Elite Intercom Two 12ft Headset/Helmet Cables with quick disconnect nexus mil spec connections Available with Bluetooth and/or DSP Music/Phone Audio Input Cable Included on standard and DSP models (sold separately for Bluetooth models) 6' cable allowing you to input music into your intercom or voice conversation from a phone or music device The 4 Link Pro Elite Intercom plays music into your helmets or headsets, then when you speak into the microphone or receive an incoming radio transmission, music automatically lowers to 20 volume DSP - Digital Signal Processing electronically removes all noise from the intercom system except your voice One touch operation on the face of the intercom allows you to turn on DSP when you need it and turn it off when you don't Bluetooth - Pair your Cell phone or Bluetooth capable music device player for wireless music and phone calls. Listen to your music without connecting any wires or have a cell phone conversation without ever connecting your phone to your intercom system One touch operation on the face of the intercom allows you to play or pause while music is playing or answer incoming phone calls