AVLink TWS20 User manual

TWS20 TWS Earphone

Operation manual

Product name：TWS Earphone

FCC ID: R2M-TWS20

Manufacturer: AVLink Industrial Co., Ltd

Address: 7F., A1 Bldg., 1st Shuichanjingwan Industrial Area,

Nanchang Village, Gushu, Bao'an Dist, Shenzhen, Guangdong, China

TABLE OF CONTENTS

1. Introduction

2. Appearance

3. Operation procedure

1. Introduction

TWS20 is a binaural wireless connection stereo Bluetooth headset. It uses the

original phase technology 5.0 chip design to realize wireless transmission of high-

quality stereo music between the left and right earphones and the mobile phone.

Connect to the mobile phone, instead of the traditional TWS, mobile phone

music needs to be transmitted through the host and then to the slave for music

and sound transmission. The left and right earphones directly connected to the

mobile phone have the strongest anti-interference, the lowest delay, better sound

quality, and lower

Radiation and other advantages greatly improve the convenience and safety of

TWS headsets. The product design is compact and comfortable to wear. With the

400mA large-capacity charging box, it realizes an integrated charging and storage

design, which greatly improves the product's battery life.

2. Appearance

3. Operation procedure

Function

Operation

Result

Power On

The shutdown mode, Long press the

multifunction key 2 seconds

The blue light 2 seconds,

Power on reminding

Power Off

The standby mode, Long press the

multifunction key 3 seconds

The red light 2 seconds then

off，Power off reminding

Pairing

Boot automatically back Connected,

Don't succeed, enter the auto pairing

mode

Paired Successfully Connected

reminding

Volume Adjustment

Short Press Volume Up or Volume

Down

If user press Volume Up or

Volume Down to choose the

volume, when volume is in

maximum will beep

reminding,minimum isn’t

have any reminding

Play、pause

Play music

Press MFB Once

(Re-dialling)

Press MFB Twice

Standby

End call

Press MFB once

Talk

Receive Call

Press MFB once

Call

Reject Call

Long Press MFB Twice

Call

transferring call

None

Multipoint for HFP and

A2DP

In pairing mode, connect to A phone

first, and then turn A phone blue

Turn off the tooth function, turn on

the bluetooth of mobile phone B and

connect with BS36

Connect, and then restart the

Bluetooth function of mobile phone

A and connect

Paired Successfully Connected

reminding

Initialization function

Add or subtract the key for 5

seconds at the same time in the

matching state

DiDi reminding

Mobile TV frequency

Frequency function of Mobile phone

entering TV in playing State

None

Item

Visual Indication

Audio Indication

Charge

Charging

Lighting in Red (LED)

None

Fully charged

Lighting in Blue (LED)

None

Battery low

(in Standby mode )

Flash Red (LED) When

battery voltage is 3.5V or

above, LED blinking normally.

Below 3.3V, LED show

“Battery Low”indication.

And auto power off as below

3.0V

Battery low

power On

The Blue light 2 seconds

Power on

power Off

The Red light 2 seconds and

then Off

Power off

Pairing

Blinking in Blue and Red

alternatively (LED) (last for 4-

5 minutes) (0.8 sec. Red/ 0.8

sec. Blue)

Ready to pair

Paired Successfully

The blue light flashes slowly

twice every 3 seconds

Connected

Disconnect

The blue light flashes twice

every 2 seconds

Disconnected

Incoming telegram

Blue light flashes once per

second

Electronic sound prompt

One the line

Blue light flashes 2 times in 2

seconds

End of the call

Blue light flashes 2 times

Reset

Red and blue lights are on at

the same time for 1 second

DiDi reminding

Auto power off

Pairing unsuccessful (about 5

minutes) auto power off

Power off reminding，Power

off

NOTE: This equipment has been tested and found to comply with the limits for a

Class B digital device, pursuant to part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference in a

residential installation. This equipment generates uses and can radiate radio

frequency energy and, if not installed and used in accordance with the instructions,

may cause harmful interference to radio communications. However, there is no

guarantee that interference will not occur in a particular installation. If this

equipment does cause harmful interference to radio or television reception, which

can be determined by turning the equipment off and on, the user is encouraged to

try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

-Consult the dealer or an experienced radio/TV technician for help

Changes or modifications not expressly approved by the party responsible for compliance

could

void the user's authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following

two conditions:

(1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause

undesired operation.

Table of contents

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