MX Professional 2 in 1 Wired & Wireless Mic with Built-in Echo Microphones Microphone

When You have an Amplifier Without Karaoke Features And you Want To Sing Along , This Wireless Microphone Turns Your Regular Amplifier To a Karaoke System. This Excellent Wireless Microphone System Comes With A Handheld Microphone and Includes Mini Fm Receiver (That Plugs Into A Pa System) In The Fm Radio Frequency Range Of Around 114 Mhz. The Echo Feature can Delay Up To 18 Million Seconds . The Receiver has An On / Off Switch And A Fine Tuning Frequency Control. The Frequency Response Is 100 To 10,000 Hz And The Impedance Is 600 Ohms. Wireless Mic: Carrier Frequency: 109.00-115.00 mhz Output Level: 10mw S/N Ratio: 75db Modulation: Fm Maximum Deviation: 30khz Battery Powered: 9v. Receiver: Carrier Frequency:109.00-113.00 Mhz Rf Sensititvity: 20db/Uv, S/N Ratio : 50db Frequency Response: 50-15khz, Audio Output Level: 10mv Power : AA Battery X 2 On The Transmitter And 1 AA On The Receiver.