Includes:2 wireless handheld microphones1 receiver unitUser manualBatteriesPower adapterFeatures:Rockville RWM1202VH VHF Dual Channel Handheld Wireless Microphone Systemmproved high performance wireless handheld microphone capsuleIncludes transmitter with two handheld, high sensitivity, unidirectional, wireless cardioid microphonesFeaturing a dual filter design to limit feedback and interferenceUltra signal stability eliminates unwanted distortionTransmitter automatically links to receiver for ease of useUse two handheld mics at onceIndividual microphone volume controlsRugged metal housingComfortable ergonomic composite microphone constructionLow power consumption for longer battery lifeSystem:Operating Range: 100-200(indoor), 65-165(outdoor)Channel: Two ChannelFrequency Range: 170MHz - 260MHzFrequency Response: 80MHz-12000MHzFrequency Width: 32MhzDynamic Range: 110dBOperating Temp: 14F - 122FOscillation Mode: Quartz CrystalFrequency Stability: 0.005%Modulation Mode: VHFFrequency Response: 80Hz - 8 KHz (3 dB)Harmonic Radiation :2mVDe-Emphasis: 50SAudio Output Impedance: 600OAudio Output Level.: 0-0.5VPower Supply: AC110V /220V 50/60HzCurrent Consumption: =50mAAudio Out Connector: 1/4? unbalancedTransmitter:Frequency Stability: 0.005%RF Output Power: =30mWModulation Mode: VHFMaximum Deviation Range: 50KHzMicrophone Mode: FixedPre-Emphasis: 50SPower Supply: AA/1.5V 2Current Consumption: =35mA