Amazon.com.mx:Opiniones de clientes: Bietrun - Micrófonos inalámbricos, recargable profesional (funciona 7 horas), sistema de micrófono de mano inalámbrico de doble canal con Bluetooth, rango de 150 pies, conexión automática, 2 x 15 canales, para karaoke, habla, iglesia
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Haven't used them much yet but they really surprised us with the sound. Connected easy and I doubt we'll need more than 2 on volume in our small area. Do wish they came with a holder. We use a regular one with a rubber band to secure it for now. Can't speak to Bluetooth as we haven't used it. First set had a mic that stopped working. Returned for a replacement which was easy to do and quick. New set still working good sounds good. Time will tell.
We love :) this System for our Karaoke...having the volume button on the bottom of the microphone and easily adjust it for your sound is nice to have...fairly easy setup...the only thing that was difficult was figuring out the monitor we had got a new one... so after looking at everything it hooked right up ...Plus they have a tutorial on Amazon on hooking this System up...or ones like it. :) ...We sang for around 4 hours and still had a full charge.
The box came was not sealed, and when I charge to tested its already full. I hope i didn't get returned product i connect my pyle amplifier and easy to set up, the sound was amazing. Will be use it for a long hours soon to find out nothing wrong with the microphone, or i will return it and asks for refund.
I have used these mics on multiple occasions and the interference was horrible and the sound quality was not very good. There was constantly parts of people speech and sentences that would not be picked up. I tried everything to troubleshoot the issue but nothing really helped. these mics are not well-made and do not work well.