[TRANSMITTER+RECEIVER] TRANSMITTER: In TX mode, connect the TV/PC etc. to your Bluetooth headphones or speakers. RECEIVER: In RX mode, upgrade your wired device or car stereo with wireless Bluetooth function.

[TWS]: Support TRUE WIRELESS STEREO(TWS) function. Tidy your desk away tanglesome wires.Transmit audio from your cell phone to 2 separate speakers with 2 sets of X8s synchronously, one for L channel and the other one for R channel. Excellent for large house or a studio to enhance your listening experience.

[DUAL LINK]: Dual connection available in both modes(TX and RX). In TX mode,aptx LL and aptx HD codecs supported even pair with 2 Bluetooth headsets. In RX Mode,it can connect with 2 smart phones simultaneously,but only one phone can play music (you need to stop the music and then the other one can play).

[aptX Low Latency + aptX HD] aptX LL: with lag-free technology virtually eliminate audio-visual lag,enjoy perfect synchronization while watching TV. aptX HD: aptX HD deliver 24bit audio quality which is a "better-than-CD" (CD is 16bit) listening experience.

[BYPASS+AUDIO CONVERTER] BYPASS: Work as an audio splitter for wire and wireless. AUDIO CONVERTER: Reversely Converts digital audio signals to analog RCA or 3.5mm jack audio simultaneously.