Q: How long is the battery life of this K037/K037B?
A: It depends on what kind of batteries you use. The most common ones last for 4 hours normally. And the screen displays the power of the battery. When power runs low, the screen will also flash.
Q: Can I use 2 of these with one receiver? Can I plug other XLR lav mics into transmitter?
A: No, you can't.
Q: The receiver blinks green and turn off automatically!
A: It's just because the batteries run out of power. You can replace them with a new pair AAA size batteries.
Q: How can I avoid hissing?
A: Before the setup, turn down the volume control of speaker.
When plugging receiver in, do not place the mic directly in front of speaker.
During the use, a)slowly adjust the volume setting of speaker. b)Instead of speaker, please direct the microphone to your mouth for loud and clear sound. c)And keep the mic at least 9 feet away from speaker for perfect effect.
Q: 1.I can’t pair them and it doesn't work; 2.could you word from word tell me how to reset the microphone?"
A: You can find step-by-step tutorial videos for above question on K037/K037B problem-solving playlist: http://bit.ly/k037037bproblemsolving