Wireless Monitor SystemWPM-200• UHF frequency band (780-789MHz) and PLL frequency synthesized technology for stable working performance• 6 selectable channels • Powered by 2pcs AA batteries, low power consumption design for long playtime up to 30 hours• Multiple sets of receivers can be operated with a single transmitter within the operating range• Dynamic expansion circuitry for high S/N ratio• Complex anti-interference circuit for using 4-6sets at the same time without mutual interference• Receiver LCD displays frequency, channel and battery levelRecording studio monitoring, on stage monitoringTransmitter:• Frequency Range: (780-789MHz)• Power supply: DC 12V/ 300mA• Transmit Power: ≤10dBm• Operating Current: 80mA ±10Ma• Operating Range: 50mReceiver:• Power Supply: DC 3V (2pcs AA batteries)• Operating Current: 50mA ±20mA• S/N Ratio: >50dB• Sensitivity: S/N 12dB 3uV• Frequency Response: 30Hz-18 KHz• Frequency Range: 780-789MHz• Stereo Separation: >50dBAA acid battery 2pcs(AA batteries (not included))3.5mm to 6.3mm plug 1pc3.5mm to 6.3mm conversion cable 1pc3.5mm to RCA connecting cable 1pcManual 1pc12V/300mA power adaptor 1pcPackage: kraft box