... plug and play intelligent connection When USB NANO transmitter connect to the USB port of PC/ Laptop ... , NANO USB transmitter direct decoding ,no need to install a code program ,Plug an play ... your relatives and friends Via Skype,Yahoo on a PC / Laptop. Ventilation type protein ear cover ... 360 °Interface: USB 2.0 Package Contents :Wireless headset, USB transmitter,Charging cable, User’s guide