Wirless headphone with microphone,transmeter distance can be 50 meters. it should be more convenience for your work.

Wireless Headphone with microphone.

TRANSMITTERPower Supply:DC12VWorking Frequency:TX:CH1:2403.0MHzCH2:2403.5MHzCH3:2404.0MHzRX:CH1:2474.45MHzCH2:2474.95MHzCH3:2475.45MHzTransmit Power:5dBm-7dBmTransmitting Distance:50 meterOperating Current:120mARECEIVER Power Supply:DC3.6VWorking Frequency:TX:CH1:2474.45MHz CH2:2474.95MHz CH3:2475.45MHzRX:CH1:2403.0MHz CH2:2403.5MHz CH3:2404.0MHzTransmit Power:5dBm-7dBmReceive Distance:50 meterOperating Current:90mA

Wonderful Wireless Headphone 5E-WIR001