Button
Function
Operation
Mode
RCA/ Coaxial / SPDI/F
/AUX Switch
Press once to switch between RCA/ Coaxial
/ SPDI/F /AUX audio mode. The Led will
indicate the input/output status.
Power
Power ON/OFF
Press and hold once to switch the power
ON/OFF.
RX/TX Switch
Transmitter Mode
Press once to switch between transmitting
mode or receiving mode. The Led will
indicate the RX/TX status and show the
audio
decoding mode.
Hold RX/TX Switch for 2S, it will disconnect
and clear the pairing device for
reconnecting
，
the LED will flash to indicate.
Receiver Mode
Indicator
Status
RCA
Inputs/outputs the audio signal via RCA.
CDO
Inputs/outputs the audio signal via Coaxial.
SPDI/F
Inputs/outputs the audio signal via SPDI/F In/ SPDI/F Out.
AUX
Inputs/outputs the audio signal via AUX.
SBC
Using SBC
decoding mode.
FS
Using FastStream
decoding mode.
LL
Using AptX Low Latency (AptX LL)
mode.
AAC
Using AAC
decoding mode.
APTX
Using AptX
mode.
Note:
1. Operation range can be affected by Wi-Fi routers, Wireless TV adapters, physical
obstructions like walls, metal obstacles etc, and also depended on receiving device.
2. To take advantage of the better performance of the APTX Low Latency codec (~40ms), the
other side device must support the same codec. If the other side device only supports the
