LF-18 Smart Wireless Bone Conduction Bluetooth Headset Headphones

BONE CONDUCTION HEADPHONES Specification
Model	LF-18
Speaker Type	Bone conduction technology speaker, 1w dual speaker
Battery	260mAh Polymer battery
Mic	Anti‐interference microphones, ‐42DB
Effective range	10m (33feets)
Mono/Stereo	Stereo
Blue tooth Version	CSR8635)4.1
Weight	60g
Bluetooth Class(1/II)	II
BQB included(Y/N):	No
Bluetooth Profile	a2dp/HFP,HSP,AVRCP,GAVDP,AVDTP
Receiving Sensitivity	88dBm
Impedance	8Ω
Frequency range	20‐20KHz
Charging	MICRO USB port and need 2h
TF card	No
System language	English ‐ Prompt tone is English
Indicator lightStatus	Red light flashing rapidly: Lack of Power
	Red Light on: charging
	Blue Light on: full charged
	Blue and red lights flashing: Matching
	Blue light double flash slowly: fail to match, maybe the device is power off, or the distance of both is over 10m(30feets)
	Blue light flash slowly: Matched/dialing/playing audio.
	Blue light flashing rapidly: call coming
Operation	Headphone control	Prompt tone
Answer call	Click the call button	buzzing once
Ending cal	Click the call button	buzzing once
Reject call	Long press call button for 1s	buzzing once
Re‐dial last call	double click call button	buzzing twice
Voice control	long press call button	buzzing once
Volume control	click the vol button "+""‐"	have buzzing at the volume limit



Play/Pause phone music	Press Play button	no
Power on	put switch on "on"	prompt tone "Power on"
Power off	put switch on "off"	prompt tone "Power off"
BT disconnecting		prompt tone "Dingdong"
BT connected		prompt tone "paired"
Match again/manual matching	Long press play button for 3s	prompt tone "Ready to pair"
Low Power		buzzing once
Up/down	Long press "+""‐" for 2s	No
Matching Method:	1.Put bluetooth headphone switch at "ON"
	2.Search bluetooth device on your phone or other digital products, then choose it.
	If it is 1st time to match, it will automatically enter the match mode once the bt headphone turning on. And the LED lights will alternate flash between blue and red.
	If it was connected with last device, it will automatically match in 10s. And the blue light is on.
	If it matches other device or re‐match, press"play"button for 3s, the bluetooth headphone will enter manually matching mode. blue and red light flash alternatively.
	Notes:
	1. If the connecting distance is beyond the bt headphone effective range(10m or 33feets), the headphone will disconnect with the device. Once in effective range again, they will connect again automatically. But if the disconnecting continues for long time(over 3mins), you maybe need to double click "Play" button to connect again.
	2. If turn off the device, bluetooth headphone will disconnect. When turn on the device, only need to double click"Play"button to connect

LF-18 Smart Wireless Bone Conduction Bluetooth Headset Headphones

Have a question?