wonderful wireless headphone,transmeter distance can be 6 meters. it should be more convenience for your work.

wonderful Wireless Headphone

TRANSMITTERWorking Frequency L:2.3MHzWorking Frequency R:2.8MHzPower Supply:DC12VTransmitting Distance:6 MeterOperating Current:55±5 mARECEIVER Power Supply:DC 2.2-3.3VOperating Current:30±5mAWorking Frequency L:2.3MHzWorking Frequency R:2.8MHzReceive Distance:›6 Meter Frequency Response:20Hz-20KHzTransmit Power:›8mW 0.12V-0.7VS/N Ratio:›45dB›30dB

Wonderful Wireless Headphone