Amazon.com.au:Customer reviews: Bluetooth Wireless Microphone with Echo, Treble, Bass, Professional UHF Dual Handheld Dynamic Karaoke Microphone System, 160 Ft Range, for YouTube TV Karaoke, Party Singing, Speaker System, iPhone
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This is the first wireless microphone that has built-in mixer that I've ever seen and purchased. I was skeptical at first because it looks so small compare to my existing mixer unit, which is a full on unit by itself that weights over 5 lbs. Upon plugging this machine to my amplifier to test it out, the mixer quality is almost as good as my existing unit (which cover over $200, but this whole set with 2 wireless microphone only cost half of that). Even though it's pretty compact, it still has enough controls for each microphone along with ECHO controls, which is a much needed feature for karaoke. It also has trebble/bass control and music input level controls so we can adjust the music and our vocal balance. It's missing key control (which is used to make the song goes higher or lower in pitch), however that feature isn't as important nowaday that we use youtube for our media source and we can find male or female version of a song easily. The microphone has good range and pick up and produces good vocal and it mixes well with the music source. I don't get lot of feedbacks from the microphone unless directly pointing them to the speakers, which is very good for something at this price point. Another interesting thing about this is that the unit is powered using microUSB port, which means it can be portable and be powered using a power bank, no need for those big and easy AC power adapter. That's a great idea in my opinion which would allow this to be portable.
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Usage: won't fill up a big conference room but adequate for a living room
Pros: -compact size -good build quality overall -works well for the price -comes with good instructions -comes with plenty of cables for wired connections to external speakers and mixers -on device bass, treble, echo adjustments, usb power connection
Cons: -knobs could feel more smooth and tactile and indicator should be a different color to stand out more -doesn't come with batteries for the handheld mics