Letscom 8UI User Manual

Bluetooth Headphones

User Manual

U8I

Thank you for purchasing our products, please read the
user manual carefully before use.

English Version --------------------- 1

Deutsche Version -------------------- 15

A

Package Contents

● Bluetooth headphones × 1

● Eva bag × 1

● Eartips × 3 pairs (large, medium, small)

● Micro USB cable × 1

● Wire clip (removable) × 1

● User manual × 1

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B

At a Glance

Right Left

Volume + / Next

Microphones

MFB button
(multi-function button)

Micro USB port

Volume - / Last

R (for the right ear)

LED indicator

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L (for the left ear)

LED Indicator Guide

● Rapidly flashing red and blue alternately: Pairing mode

● Flashing red once every 6-8 seconds: Low battery

● Flashing blue once every 6-8 seconds: Paired

● Flashing blue twice every 6-8 seconds: Powered on but

not paired

● Rapidly flashing red 3 times: Powered off

● Steady red: Charging

● Steady blue: Fully charged

Using the HeadphonesC

1. Charge the headphones

1) Open the hinged door on the bottom of the right
earphone.

2) Plug the small end of the USB cable into the
Micro USB port of the headphones.

3) Plug the other end into a USB wall charger or
computer (DC 5V) that is powered on.

Notes:

● Fully charge the headphones before using them

for the first time.

● The indicator is red during charge.

● The indicator turns blue when the headphones

are fully charged.

● The indicator flashes red and a voice reminder

prompts when the headphones are in low battery.

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2. Power on/off

● Power on: Long press the MFB button for 3

seconds.

● Power off: Long press the MFB button for 3

seconds when the headphones are on.

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3. Pair

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1) Turn on the Bluetooth of your phone or other
Bluetooth devices.

2) Turn on the headphones when they are in
shutdown state and the headphones enter
pairing mode (indictor rapidly flashes red and
blue alternately).

3) In the list of found Bluetooth devices in your
phone or other Bluetooth devices, choose "U8I"
to pair.

4) Enter "0000" or "1234" if your phone or
Bluetooth device asks you to enter a code to
pair.

Long press

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Notes:

● The headphones will directly enter pairing mode
the first time you turn them on. To enter the pair
mode later, follow the steps above.

● The headphones will connect to the last paired
Bluetooth device automatically when they are
turned on. Please turn on the Bluetooth of your
Bluetooth device before turning on the
headphones.

● When the headphones are on but was not paired
with your phone or other Bluetooth devices, they
will exit the pairing mode in 1 minute (to enter
pairing mode again, turn off the headphones and
turn them on again) and be automatically off in
about 5 minutes (to enter pairing mode again,
turn on the headphones).

4. Connect to two Bluetooth devices at

the same time

1) Pair the headphones with the first phone.

2) After a successful pairing, turn off the

headphones and the Bluetooth of the first
phone.

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3) Pair the Bluetooth headphones with the

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second phone.

Long press

4) After a successful pairing, turn on the
Bluetooth of the first phone, choose "U8I"
and tap to connect, then these two phones
are both connected to the headphones at the
same time.

Phone 1

Phone 2

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5. Wear the headphones

Gently push the eartip into your ear and adjust the
ear hook until you feel comfortable with it.

6. Volume up/down, next/last song

● Short press "+" button to increase the volume;

long press "+" button for 2 seconds to skip to
the next song.

● Short press "-" button to decrease the volume;

long press "-" button for 2 seconds to skip to
the last song.

7. Play/pause playing songs

Short press the MFB button to pause and short
press the MFB button again to resume playing
songs.

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