We run 7 bodypacks, with our drummer and bass player sharing 1 transmitter. Its a bit hard to plug into but no problem for me. The sound quality are perfect as well for calling and also if you own an IPhone you have to download “Samsung Buds +”. They are just what I wanted in terms of fit. Soon I could not believe how i lived before these things. Why other Bandsaw manufacturers have not copied their design, I will never know. It rattles like Chinese plastic and they just feel too light. But for me personally. I actually plan on buying another if I end up liking this job, I will most definitely be buying the same brand, only black. ,+ several others) who viewers will probably recognize!