Pro VHF Dual Wireless Cordless Microphone System UT4 Type for Karaoke KTV DJ<br>Description:<br>Professional wireless system with 2 microphones. Ideal for professional use at any events: Karaoke， sound source recording and amplifying， vocal concerts， live-performances， conference， musical and opera， church， school， hall， family， party， etc.<br>Specification:<br>Receiver:<br>Receiving system: fixed frequency by quartz controlledReceiving sensitivity:60dB S\/N ratioS\/N ratio: &amp;gt;100dBAudio output level:Unbalanced mode of CHA+B: 0 ~ 0.5V\/5K&amp;Omega;Unbalanced mode of CHA and CHB: 0 ~ 0.5V\/50K&amp;Omega;Power supply: AC 110V \/ 220V (&amp;plusmn;10%)Dimensions: 420 x 240 x 45mm (L x W x H)<br>Microphone:<br>RF power output:15mW(MAX)Spurious emissions: Over 45dB carrier wareMicrophone element: Unidirectional dynamic microphoneBattery: Standard 9V battery AACurrent consumption: About 25mABattery life: Over 8 hours continuous operationDimensions: 51 x 243mm (D x L)Weight: 227g<br>Overall system:<br>Carrier frequency rage:   VHF high band 220 ~ 270MHz   UHF 400 ~ 880MHzFrequency stability: &amp;plusmn;0.05%Modulation mode: FMMaximum deviation range: &amp;plusmn;25KHzFrequency response: 40Hz-15KHzS\/N ratio: &amp;gt;100dBAudio dynamic range: &amp;gt;100dBT.H.D: &amp;le;0.5%Service areas:150 meters.Temperature range: -10\u2103 ~ 50\u2103\u2103Length of connecting cable: 100mmLength of power adapter cable:110mm<br>Package Included:<br>2 x Handheld microphones1 x Receiver1 x 1\/4 inch connecting cable1 x Power adapter1 x Instruction<br>Detail Pictures: