2.4g Wireless Receiver, USB Dongle Manufacturer of Inventec Besta

2.4G Active Frequency-hopping technology with high-fidelity sound data transmission provides excellent signal in low noise ratio and realistic sound transmission.

http://www.taiwantrade.com.tw/EP/inventecbesta/products-detail/en_US/673549/2.4G_Audio_Transmitter%2C_2.4G_Wireless_receiver%2C_USB_Dongle