ZeroNoise Pit-Link GSM Digital Amplifier / Communication System brings the simplicity of the GSM connection to the circuit. By inserting a sim card into the unit, the amplifier turns into a phone. No need for radio communication, GSM will cover even the black spots of the radio frequencies.  Features include: Digital noise filtering and voice equalisation, multifunction touch display, 12v filtered power cable, Car Camera Audio output (RCA), Radio IN/OUT, Bluetooth, Nexus connectors, L=2m cables.

PTT Optional 

• Dual volume adjustment
• Digital noise filtering and voice equalisation
• Multifunction touch display