Dongguan Yong fang Electronic Technology Co. LTD. 003ADEP387 User Manual

  

                       

 

 

 

 

 

USB5V 

 

420*148mm,材质：80G书写纸，黑白单面印刷，风琴折。

We are very appreciated that you chose our PB304 as your Walkman bluetooth speaker.Please read this 

instruction carefully before use to make the product more functional.It has not only gorgeous and 

fashionable exterior design but also pure and beautiful sound.The whole unit possesses design patent.

It has advanced audio engineering,which makes you enjoy excellent acoustics whenever and wherever.

Please store and use the unit under normal temperature environment;

Please don’t expose the unit to the rain or humid environment;

Please don’t throw the unit in order to avoid any damage;

Please don’t disassemble and repair the unit by yourself;

Please don’t discard or place the unit in the fire due to the built-in lithium battery.
Warm reminding:

1.For the sake of your hearing protection and the unit working life ,please don’t listen to the

 music at high volume for a long time!

2.When there’s a trouble with the unit,please immediately shut off the power and pull out the USB

 plug so as not to damage the loudspeaker and other components.

3.When there’s a toot indication showing low power,please charge the lithium battery timely,

because low power will affect the sound quality and the data transmission range,or the bluetooth

 will be easy to disconnect.

4.If the unit isn’t used for a long time,please charge at least once in a month.This will be 

useful to protect the battery and extend its lifespan.

5.The unit has auto power-off function:if it is not connected or not working during 25 minutes,

it will be shut down automatically.

Dongguan Yongfang Electronic Technology Co.,Ltd

Function Buttons

- :Short or double Press-Volume Down

/Long Press-Next One
+:Short or double Press-Volume Up /

Long Press-Previous One

:Play&Pause/Answer&Hung Up a Call

Audio Input

Power Switch

Model No.: PB304

Bluetooth Version: Bluetooth V3.0+EDR

Data Transmission Range: ≤10M(depending on the surrounding and connected bluetooth device)

Micro USB Charging Voltage: DC 5V-1600MA

Built-in Battery: Lithium Battery 1500MAH

Output Power: 3W×2

Frequency Response: 90Hz-18KHz

Sensibility: 80dB±2dB

SNR: ≥80dB

Unit Net Weight: 0.748KG
Accessories:

1. Bluetooth Speaker  1PCS

2. 3.5MM Audio Cable   1PCS 

3. Micro USB Charging Cable  1PCS

4. Instruction/Warranty Card   1SET
Function State Instruction

Power On

Blue Light On

Bluetooth 

Search

Blue Light 

Twinkling

Connected

Blue Light

On

AUX

Blue Light 

Twinkling

Charging

Red Light 

On

Fully

Charged

Dim Red 

Light 

Incoming

Calls

Blue Light 

Slowly 

Twinkling

Operation Mode

Short Press

Continuous Double

press

Short Press

Long Press

Short or double

Press

Long Press

Connection

Status

Play/Pause

The Last Dialed

Number Callback

Volume Down
The Next One

Volume Up

The Previous One

AUX

Cutoff Audio

Source Input

N/A

N/A

N/A

N/A

N/A

N/A

Volume Down

Volume Up

Volume Down

Volume Up

Incoming Calls

Speaker 

Phone

Power On: Turn on the power switch,there will be a warning tone and blue light twinkling.The volume 

default is 70%.

Connection: After power on,the unit will enter into searching status and the blue light will twinkle quickly;

meanwhile,it will match the bluetooth device automatically,and the device will remind match or not.

Confirmed to match and connected successfully,the blue light will be turned on,and there will be a toot 

reminder coming out of the unit(In general,there’s no need to put in password;if there’s a need,then put 

in “0000”).If the unit can’t search any bluetooth device after power on for 5 minutes,it will be auto shutoff.

If there’s a need for a second connection,the unit has to be powered on again.The unit has reconnection 

function,that means the bluetooth device will be auto match when the bluetooth is turned on once more if 

the device has been connected successfully.Warm reminding:if the connection is failed,please reset the 

unit or maybe it’s low power,please charge it.

Music Play: Long Press “-” for next one;Long press “+” for previous one;short or double press “-””+” for

volume adjustment;press     to play and pause the music;long press    for disconnection and searching 

another bluetooth device.

Speaker Phone: After connected with the mobile phone,when there comes a call,there will be a notification

tone coming out of the unit;press     to receive the call,press     again to hang up.

AUX Audio Source Play: Plug the audio cable into the speaker AUX audio interface and computers or other

music player audio socket.Start the music on the player,the unit will switch to AUX mode automatically.

short or double press “-””+” for volume adjustment;press     to play and pause the music and disconnect.

Warm Reminding: When in AUX state,the Previous,Next,Play and Pause will be controlled by the player.

Smart Auto Quick Charge: Charge with the USB charging cable in the poweroff state,plug the Micro USB

port into the speaker USB power socket and the other port into the computer USB socket or USB charger,

then it will start charging,and the red light will turn to dim red after fully charged.

Battery Life: Buit-in lithium battery with a capacity of 1500MAH.Support continuous playing for over 5 hours.

Wireless: All the devices with Bluetooth V3.0 or more advanced version(regarding the agreement details,

please refer to the universal specification),such as iPad,iPhone II or other iPhone with iPhone software 3.1,

iPod,TOCH,MAC with Bluetooth,and most of other master phones and computers with Bluetooth TM.

Bluetooth V3.0 includes A2DP,AVRCP,HFP,HSP.

Phenomena

Problems

Failed connection after 

several trials

Low volume or 

distortion

Interruption

Indicator no function

Solutions

1.Check the unit is in search or not,or reset it.

2.Close other bluetooth devices causing disturbance.

1.Check the volume of the bluetooth device and adjust to 

proper level.

2.The battery is low power.Please charge it.

1.Check if it’s out of the effective transmission range,or if 

there’s any obstacle between the unit and bluetooth device.

1.The battery is low power.Please charge it.

2.Reset the unit.

Warning:  Changes or modifications to this unit not expressly approved by the party responsible for 

compliance could void the user’s authority to operate the equipment.

NOTE:  This equipment has been tested and found to comply with the limits fora 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.

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

BC

- CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or 

equivalent type.

- Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such as sunshine, 

fire or the like.

The Rating Label is sticking on the speaker bottom part .