I've only used these mics about five times. I ordered a few others from another company because the rose gold mic had near zero battery life. I could handle it, but there were times when the other device's receiver wasn't charged, so I brought these. Well, Jack's receiver broke in my speaker system. Luckily I have a different jack, but if I can't get the part I'll have to order a larger mic set so that more than two mics can work at the same time. I'm very angry that these crappy mics could have ruined my speaker system 😡