... wireless microphone Wireless Microphone for Teachers,USB Wireless Microphone,Bluetooth Wireless MicrophoneFor handsfree convenience, the 1090 with pendant type microphone ... If both hands free is what you need, this microphone is perfect. 2.4GHz emitter, microphone ... cable-free convenience. Feature:1.Portable,convinient,microphone hands free,USB jack2.Certificate:ISO 9001:2000, ...