Audikast D4169 Product Overview-Buttons , Indicators & Function Table – Avantree Support

①Codec indicator ⑥Bluetooth status indicator for

②Audio input indicators ⑦Powering port

③ for black headohones ⑧On/off switch

④ for red headphones ⑨Optical input from TV

⑤Bluetooth status indicator for ⑩AUX input from TV

Function Table	From Status	Action	LED Indicator ⑤/⑥
Power ON	Connected to Power	Slide the Power Swith⑧ to ON	All LED light up for 2 seconds
Power OFF	ON	Slide the Power Switch⑧ to OFF	Turn off
Pairing	ON	Press and hold ③/④ for 5s	Flashing BLUE and RED alternaly
Lock the Connection Between the transmitter and the Headphones	Connected	Press and hold ③/④ for 10s	RED and BLUE LEDs are on SIMULTANEOUSLY for 5S (may look Pink)
Clear Pairing History	ON	Press and hold ③ and ④ SIMUTANEOUSLY for 7s	RED and BLUE LEDs are on SIMULTANEOUSLY for 2S (may look Pink)
Device Firmware Update (DFU)	On without Connected	Press and hold ③ and ④ for 15s	BLUE and RED LEDs are on SIMULTANEOUSLY(may look Pink)

Over-ear Headphones (Black)Overview & Function Table:

⑪ Charging port ⑮ Charging/working indicator

⑫ Volume down ⑯ AUX input port from phone/tablet

⑬ Multi function button(power on/off/pairing) ⑰ Mic

⑭ Volume up

Note: If you have a newer batch of over-ear headphones, they will look slightly different. There's an additional power switch which is used for power and pairing.

Function	From Status	Action	LED Indicator ⑮	Voice Prompt
Power ON	OFF	Press and hold MFB ⑬ for 2s (NEW) Slide switch to "ON"	Flashing BLUE once every 2s	"Welcome to Avantree"
Re-connect	Standby	Short press MFB ⑬ once	Flashing BLUE once every 2s	Beep
Pairing	ON	Press and hold MFB ⑬ for 5s (NEW) Slide switch to "PAIR" for 5s	Flashing BLUE and RED alternately	"Pairing"
Clear Pairing History	ON	Press and hold Volume "+" and Volume "-" for 10s	Flashing BLUE and RED alternately	/
Play/Pause	Streaming Audio	Click the MFB ⑬	/	/
Adjust Volume	Streaming Audio	Click Volume"+"⑭/ Volume"-"⑫	/	Beep when reach at MAX/MIN volume
Previous/Next track	Streaming Audio	Long press Volume"+"⑭/ Volume"-"⑫	/	/
Activate Voice Assistant	Connected with Cellphone	Short press both Volume "+"⑭/ Volume "-"⑫SIMUTANUEOUSLY	/	/
Answer/End a call	With an incoming call	Click MFB ⑬ once	/	/
Reject a call	With an incoming call	Long press MFB ⑬ once	/	/
Power OFF	ON	Press and hold MFB ⑬ for 5s (NEW) Slide switch to "OFF"	RED for 2s	"Goodbye"

Neckband Headphones (Red)Overview & Function Table:

⑱ Microphone ㉑ Multi function button

⑲ Charging port ㉒ Volume down

⑳ Volume up ㉓ Charging/working indicator

Function	From Status	Action	LED Indicator ㉓	Voice Prompt
Power ON	OFF	Press and hold MFB ㉑ for 3s	BLUE for 1s	"Power on"
Power OFF	ON	Press and hold MFB ㉑ for 5s	RED for 2s	"Power off"
Pairing	OFF	Press and hold MFB ㉑ for 5s	Flashing RED and BLLUE alternately for 2 minutes	"Power on, pairing"
Re-connect	Standby	Click MFB ㉑ once	Solid BLUE	"Your device is connected"
Disconnect	Connected	/	Flashing BLUE once every 5s	"Your device is disconnected"
Play/Pause	Connected	Click MFB ㉑ once	/	/
Adjust Volume	Streaming Audio	Click Volume "+"⑳/ Volume"-" ㉒	/	Beep at MAX/MIN volume
Previous/next track	Streaming Audio	Press MFB ㉑ for 1s	/	/
Voice Dial	Connected with Cellphone	Click both volume "+" ⑳ and Volume"-" ㉒ SIMUTANEOUSLY	/	/
Answer/End a call	With an incoming call	Click MFB ㉑ once	Flashing BLUE twice every 5s	/
Reject a call	With an incoming call	Press MFB ㉑ for 1s	/	/
Clear Pairing History	ON	Press and hold Volume "+" ⑳ and Volume "-" ㉒ for 5s	BLUE and RED are on 2s SIMULTANUEOUSLY	/

LED Indicator Table:

LED Indicator	Staus	Means
Transmitter Bluetooth Status Indicator ⑤/⑥	Flashing BLUE once every 2s	On without connected
	Solid BLUE	Connected
	Flashing RED and BLUE alternately	Bluetooth Pairing Mode
	RED and BLUE are on SIMULTANEOUSLY for 2s	Pairing History Cleared
	BLUE for 2s	Transmitter and headphones Locked
	Solid RED and BLUE for both indicatros	Enter DFU mode
Audio Input Indicator ②	AUX lights up	Valid analogue audio signal
	AUX flashes	Invalid analogue audio signal
	OPT lights up	Valid optical audio signal
	OPT flashes	Invalid optical audio signal
	USB lights up	Audio Playing on PC
Codec Indicator ①	LL turn solid light	Connected using the aptX LOW LATENCY codec
	APTX turn solid light	Connected using the aptX codec
	FS turn solid light	Connected using the FastStream codec
	SBC turn solid light	Connected using the SBC codec
Headphones (AS9S)Indicator ⑮	Flashing BLUE and RED alternately	Bluetooth Pairing Mode
	Solid BLUE	Connected
	BLUE and RED are on SIMULTANEOUSLY for 2s	Pairing History Cleared
	Solid BLUE turns to Solid RED	Low battery
	Solid RED	Charging
	RED LED off	Charging completed
Headphones (NB16)Indicator㉓	Solid BLUE	Connected
	Flashing RED and BLLUE alternately	Bluetooth Paring Mode
	Flashing BLUE once every 5s	Standby
	BLUE and RED are on SIMULTANEOUSLY for 2s	Pairing History Cleared
	Solid RED	Charging
	RED LED off	Charging completed
	Flashing RED once every 10s	Low battery