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This product must be charged before use. 

Use the included USB cable to charge. 

Connect the charging connector of the supplied USB charging cable to the earphone.

Connect the series A connector of the USB charging cable to the USB port of your PC, etc.
* If the PC is not connected to a power source, it will not output charging power.

Connect the charging cable to the product.

Connect the USB charging cable to your PC.

The LED lamp lights red when charging.

[Charging connection]

Earphone

PC

Series A

connector

To PC USB port

Open the rubber cover and connect the 

charging connector.

USB charging cable

Charging

connector

Be careful of the connector 

orientation with connecting.

(Cannot be connected in reverse.)

USB AC adapter 

Check the 

connection.

Setting the Headset (Pairing Mode)

Before Using the Product

Connection Check and Calling Test

The LED lamp will blink blue in a loose pattern

(approx. once every 5 seconds)

Re-dialling (Calling the last-called number)

Hanging up the call

Adjusting the volume

Perform using the volume button on this product. If you 
cannot achieve the desired level of volume using the 
volume button on this product even when it is at maximum, 
adjust the volume on the paired device.

Placing a call

iPhone:

Type

Android: 

After placing a call, select (LBT-HS350) as the sound output
device.
After placing a call, press the [Bluetooth] button on the screen. 

Operation

Receiving a call

Make a call from the mobile phone.

Press HERE

With the power of this product turned OFF, press and hold the multi-function button for 

8 seconds or more. When the LED lamp begins alternately blinking red and blue, the 

device has entered pairing mode.

* If the headset does not have pairing information, the device enters pairing mode when 

the power is turned on (4 seconds of holding down the multi-function button).

Enter the headset into pairing mode

If the pairing occurs with an unintended device, turn off that device and perform this step again.
If any devices which have already been paired are nearby, you can take your finger off of the button as soon as the 
LED lamp turns on. 
If the device's automatic re-connection setting is enabled, connection is automatically re-established with that device.
Some devices may require prior operation to allow communication with LBT-HS350.

Press

 

HERE

How the product behaves after the power has been turned on 

depends on the connection condition.

1. If the paired device is nearby

 Automatically re-connects to the device (blue light blinking 

every 5 seconds)

2. If the paired device is not nearby

 Not connected (blue light blinking twice every 5 seconds)

3. If there is no pairing information

 Enters pairing mode right after turning on the power

(Red/Blue alternate blinking)

For Subsequent Connections

Turn on the power to activate the product

While the product is turned 

off, press and hold the 

multi-function button for 4 

seconds. The LED lamp 

will blink in blue 3 times 

and the power will turn on.

If there is no power or signal from a connected device or no 
paired devices detected within approx. 5 minutes after turning 
this product on, this product will automatically turn OFF. 

About the auto power-off function

If the connection cannot be established, resetting the headset 
settings may improve the condition. To reset, while the power 
is on, press the multi-function button, and the [+] and [-] volume 
buttons at the same time until the LED lamp blinks red 5 times.

Turn power OFF

Press and hold the multi-function button for 4 seconds 
or more. The LED lamp blinks red and then turns off, 
and the product turns OFF.

When this product is detected by a mobile phone (smartphone), it 

shows up as [LBT-HS350] on the scanned device list. Select and 

register this item.

When the pairing is completed, the LED lamp will blink blue slowly 

(approx. once every 5 seconds). 

Register the headset with the device with

which you want to perform pairing.

Blinks alternately red/blue

(waiting for pairing)

Slowly blinks blue

(pairing completed)

The example is for an Android smartphone.

Wireless controls

Call settings

Sound

Display

Multimedia

Eco-mode setting

Location & security

Applications

Bluetooth

Device name

T-01C

Discoverable

可能

Scan for devices

LBT-XXXX

Pairing

Bluetooth devices

Scanning

 Wireless controls

Airplane mode

Disable all wireless connections

Wi-Fi 

Turn on Wi-Fi

Wi-Fi settings

Set up &d manage wireless access points

Receive infrared

Bluetooth

Bluetooth settings

Manage connections, set device name &

discoverability

VPN settings

Set up & manage  Virtual Private Networks

(VPN)

Mobile networks

Set options for roaming, networks, APNs

 Wireless controls

 Wireless controls

 

Search for this product from the mobile phone (smartphone) you want to pair it with. How to search varies depending 

on the device used. 

For operations on the connecting device, please refer to the user’s manual provided for your mobile phone (smartphone). 

Searching for the headset from the connecting device

Bluetooth

Device name

T-01C

Discoverable

Make device discoverable

Scan for devices

LBT-XXXX

Pair with this device

Bluetooth devices

 Wireless controls

 Wireless controls

Bluetooth

Device name

T-01C

Discoverable

Make device discoverable

Scan for devices

LBT-XXXX

Connected to mobile phone voice

Bluetooth devices

 Wireless controls

 Wireless controls

It takes about two hours before charging is completed. If the LED lamp does not turn off after 2 hours, immediately 
disconnect the charging cable and stop charging. Charging for more than two hours can shorten the battery life and may lead 
to device failure. 

To cigarette

socket

USB cigarette charger

To USB terminal

To USB terminal

Setup (pairing) is completed. 

 Once registered, the device will be automatically connected from next use.

To AC wall

outlet

Other USB-AC adapters and USB cigarette 

chargers can also be used for charging.

Charging is completed when the LED lamp 
turns off.

Red light turns on while charging.

The light turns off when charging is 

completed.

If the PC is not connected to a power source, it 

will not output charging power.

Search for the headset from your mobile phone.

Select and register LBT-HS350.

Tap on [Wireless controls] 

on the Settings screen.

Tap on [Bluetooth] from 

[Wireless controls].

Check [Bluetooth] at the 

top of the screen. 

Tap on [Scan for devices] 

at the bottom of the screen.

From the list of scanned 

devices, tap on the 

device to connect to.

When the pairing is 

successful, [Connected to 

mobile phone voice] shows 

up below the product name.

If a message appears prompting you to enter a link key, enter [0000] (four zeros). Depending on the device (Bluetooth 2.1 or later), registration may 
complete without having to enter a link key.
Depending on the device, it may be necessary to perform a [Connection] procedure after pairing is completed. Please refer to the manual of your mobile 
device for information, and perform a [Connection] procedure if necessary.

Connected 

properly? 

Check!

If the LED lamp blinks 
twice in 5 seconds, redo 
the pairing steps. 

When you hear the ringtone 
from the headset, press the 
multi-function button once.

* Due to the device 

specifications, you cannot set 
incoming call ringtone on the 
Bluetooth headset.

When in conversation, press the multi-function button once.

To call any number, use your mobile phone to place a call 
and then switch the output.

While the mobile phone is in standby mode, press and 

hold the [+] volume button.

* The re-dialling function does not dial back the number from which you 

received a call. 

* For re-dialling when the multi-point function is in use, please refer to [

About 

Placing a Call (Re-dialling)] under [How to Set the Multi-Point Function].

* For information on switching the sound output on your mobile device, 

please refer to the manual of that device. 

Settings

 Wireless controls

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