-2.4GHz Direct Sequence Spreading Spectum (DSSS) Modulation. -Very short audio latency time<2ms. -Clear stereo CD quality with uncompressed technology transmitting. -16bit, 32/44.1/48KHz digital audio transmitting. -Auto scan and synchronize RF channel. -A-Type USB interface input. -Standard f3.5mm earphone jack output -Long transmission distance (Light of sight up to 30M). -Broadcasting to unlimited Receiver by the same user ID. -Co-exit WLAN device. -Power saving when no audio input. -3 ways power supply, DC, USB & Li-on battery for receiver. -Battery is recharged by DC adaptor or USB interface.