Features: 3.5mm (1/8") stereo or mono audio in/out ports 2 programmable RF channels 450-470 MHz range 12.5 KHz bandwidth 1600 UHF channel bank LCD Display (1.44" x .88") Adjustable volume FCC and motorsports compliant Does not scan and meets series requirements for not scanning between channels Package includes Receiver prө, belt clip holster For competitors, receiver pro routes your two-way radio through the input while connecting your earbuds to the output, allowing one earpiece to hear both audio sources. Receiver prө does not scan and meets series requirements of not scanning between channels.