bietrun wireless microphone headset, 160 ft range, uhf wireless headset mic, headset mic&handheld mic 2 in 1, 1/8''&1/4'' output, for mic speakers, amplifier, pa system(incompatible phone, laptop) bietrun (excludes amp&not supported ios-iphone, bluetooth speaker&mac)●●●fcc id obtained by fcc test●●● not supported android phones, iphones and macbooks.