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Contents Model GMRS121-2 This page Left Blank Intentionally Safety Information PerformanceBattery Care Battery DisposalModel GMRS121-2 FCC License Required Model GMRS120 Display Equipment and Accessories SuppliedPowering the transceiver Installing the batteries On or Monitoring a Call Power On-Off/SCAN ButtonAdjusting the Volume 6 Push To Talk PTT ButtonMode Button Up Channel/Volume ButtonDown Channel/Volume Button GRMS/FRS OperationChannel Selection Roger Beep ToneButton Beep Key Tone VOX Selection ModeCall Ringer Selection Mode Channel Scan OperationBattery Alert 128-7005 Troubleshooting Problem Possible cause CorrectionGeneral Technical SpecificationsPower Supply ReceiverMain Channel Frequencies Channels Not DAY Limited Warranty Audiovox Electronics Corp., Hauppauge, NY 128-7005