USB Speakers

Last article point out USB SPEKAERS can used as a good gift to give parents and if make better use of USB SPEAKERS, you must learn to USB SPEAKERS on the remote control feature.
Remote control a variety of specifications, there is one that can operate the FM radio function, and the other there is no radio.
1. 0-9 on the remote control number buttons, these buttons are usually used to select MP3 music tracks.
2. Press “MODE” button you can switch a variety of usage patterns, such as switching to, FM radio, AUX external audio input, SD card playback, USB DRIVE player. Switch to the AUX external audio input, you can play through the audio line of mobile phones, MP3, MP4 and other music players.
3. The power button can turn off the player, the player to enter the standby mode.
4. CH +, CH-button is used to select USB SPEAKER stored in FM radio programming.
5. EQ key is used to select the music mode.
6. Previous and next button is used to select MP3 music previous one and the next one.
7. Pause is used to pause the player.
8. Sounds plus or minus button is used to adjust the volume of the USB SPEKAER.

USB SPEAKER can be used with other products as promotional items. At the same time, you can also buy the USB SPEAKER presented as a gift to their parents and parents are relatively large, and usually do not like to go to outdoor sports, more and more people choose to play chess, read, or listen to music. If you buy a USB SPEAKER give parents, it must be a good gift, they can use USB SPEAKER to listen to Peking operas, listening to opera, listening to pop music, you can also use USB SPEAKER to listen to the radio. There are many people choose to buy the radio to get older, because USB SPEAKER built-in FM radio, so you can use USB SPEAKER to listen to radio programs,

As a gift for parents, USB SPEAKER is better than other items

it is a very a good gift.

USB SPEKAER can carry it is because there are built-in lithium battery, usually, USB SPEAKER output power of typically 1W to 3W, because the built-in lithium battery, only for the low-power amplifier circuit. Otherwise, the battery does not

Enough power. But also in the case of sufficient power, used usb flash drive and SD card USB SPEAKER could be 4-5 hours of continuous playback.    Therefore, USB SPEAKER because of power limitations sound, the volume will be limited, to let the USB SPEAKER output more bigger, we must maximize the output power, while the actual power of the largest USB SPEAKER on the 3W, it is usually open to the maximum, the designers to expand the sound, the actual voice of 3W is limited, thus avoiding peak not sound distortion, so if the USB SPEAKER open to the maximum, there will be voice distortion, if only the sound transferred undistorted output power, audio output small.

USB SPEAKER inside card reader and USB drive board, while USB SPEAKER buttons inside the control panel is also usually have a few keys on a USB SPEAKER to select songs, radio control functions, as well as pause and play functions, the remote control there will be the number keys, there are songs play, stop, and radio control functions.  

When the USB SPEAKER remote control does not work is reason for that? First determine whether the remote control battery power, when the remote battery is dead, they would have no function. If the USB SPEAKER button on the functional, can used the panel key to play USB or SD card songs, but only non-functional remote control, there may be low batteries  or remote control is broken, if replacement batteries, remote control and functional compared to the battery is dead, and if replacement batteries, remote control device, or did not function, may be  motherboard problem.

If the keys on the USB SPEAKER nor function, nor function remote control, it may be USB SPEAKER motherboard CPU IC bad, need to open the speaker to replace or repair the USB SPEAKER of the USB and SD card driver board has. Usually open by professional person to repair. Otherwise it will create other functional problems.

USB SPEAKER can carry it anywhere you can play, because the USB SPEAKER an inset lithium battery, generally able to use inset lithium battery playing 4-5 hours, but sometimes players will be no time to listen music, and Then there is time and then play, so in the end do not know how long before the already used, so how to know the USB SPEAKER inset lithium battery power left? Have the following methods can be judged:

When use the U-disk and SD card play songs.the USB SPEAKER voice open to the maximum, playback when fully charged than the sound become smaller. Because inset lithium battery voltage is not enough, USB SPEAKER amplifier inside the IC power supply not be enough, while the output power will be smaller, so speaker is whispering.When the USB SPEAKER peak sound, there will be numb sound Ma tone phenomenon, because the inset lithium battery voltage is not enough, the voice of the peak because of insufficient supply of electricity distortion, so the sound tone hemp.

If the USB SPEAKER shown in front of the power lamps, for example, some have blue led, some are red, then when inset lithium battery when the battery is not enough to sound amplification, that the size of the lantern with the voice brighten and dark, because the power amplifier (amplifier) circuit, if the sound is large, IC needs more current, then the LED indicator light will be insufficient supply voltage dimmed. If the LED has been very dark, no sound output, then the battery has been exhausted, and need to recharge, the general is not enough if the battery charge when necessary, do not run out of time to recharge the battery, so battery life would be affected.

USB SPEAKER has a main function that is the FM electronic tuning radio. Then how to use the USB SPEAKER FM radio function ? The following describes in detail how to use the USB SPEAKER FM radio function.

First, press the USB SPEAKER’s MODE function keys to switch functions, switch to the FM radio function, LED display will show the frequency, such as shows 104.3, then the current frequency is 104.3MHZ.

In radio mode of the USB SPEAKER long press PLAY / PAUSE button, then enter the radio station FM auto search state upon receipt of radio station will be automatically saved, P0.1, P0.2, P0.3 … … save the radio station said the number of first, second, third … … … it will go back to the first radio station after searching finished.

Press the PREV key USB SPEAKER then jump on a stored radio station, press NEXT key to skip to the next one storage station.

Usually it’s easier to receive the local radio stations in the high areas or close to the window, because the tall buildings shield the radio signals.

Long time ago, USB Drive was mainly used to store computer documents, with the U disk storage capacity increases, people began to develop more products that can be applied to the USB Drive. The MP3 reader and MP4 reader were developed, and the plugin MP3 player.

USB SPEAKER is featured of the card reader MP3 portable speaker inside. USB SPEAKER is smaller, but the sound to meet the individual in a small area broadcast, sound quality is good, and do not like MP3, MP4 player, always wearing a headset. It also can meet the need of broadcast for a group of people in a small area.

USB Drive and SD card could store computer files, MP3 files, MP4 movie files, you should ensure that there is no virus, because the virus might damage the USB Drive and affect the USB Speaker. Files should be copied to the root directory, not the internal folders, or USB SPEAKER could not be read. Why USB speaker does not work?

Usually, USB drive or SD card can plug directly into USB SPEAKER of the USB PORT or SD card PORT, generally USB SPEAKER support hot swap, that is, the status of the USB SPEAKER is working while inserting USB Drive or SD cards, but sometimes improperly allocated plug contacts may be bad it will not be broadcast. Proper operation is to turn off the USB SPEAKER for the power switch OFF state, the USB drive or SD card plugged in and then open the power so that we can ensure that the USB SPEAKER to resume normal playback songs. Autoplay generally, if you want to choose other songs, you can operate by remote control.

The container size have 20FT,40FT and 40HQ these types. Normally 20FT capacity is 28 CBM,40FT is 58 CBM,40HQ is 68CBM,this is an international standard. Actually there is another size is 45HQ, but it is used very rare.

how to calculate the USB SPEAKER 20FT,40FT,40HQ load QTY, this is the always question from customers. Because the customer must calculate the freight cost per USB SPEAKER. The container freight cost is stand, if the container load the QTY more, then the per USB SPEAKER freight cost more less. So first need know the size of the carton box. And also the QTY per carton box, the G.W. these information is very important for the container load. And the container load QTY can be calculated according to the carton box size and per carton’s QTY.

For example, carton box size is 34*42*38CM, one carton load 30 PCS USB SPEAKERS. So per carton is (34*42*38)/1000000=0.054CBM, then calculate the 20FT,40FT,40HQ load quantity. 28/0.054= 518.5 CTN. Means can load 518 CTN. 518*30=15540 PCS, also 40FT, 58/0.054=1074CTNS. 1074*30=32220PCS. 40HQ, 68/0.054=1259.26, means can load 1259 CTNS. 1259*30=37770PCS. So the 20FT can load 15540 PCS USB SPEAKERS. 40FT can load 32220 PCS. 40HQ can load 37770 PCS. But different model have the different carton box size, also the load QTY per carton maybe different. So calculate the USB SPEAKER load qty must according these information.

USB SPEAKER has been able to be carry out and play because that it has a built-in lithium battery. Generally charge a battery, you can play 4-5 hours straight, so have to re-charge when the battery runs out. Since the battery recharged, the battery life will be correspondingly shortened. Maybe later on one charge only play 1-2 hours. After years, in the end, the battery will be no longer rechargeable.

When the USB SPEAKER built-in battery is not rechargeable, what can you do? In general if the charger is not broke, so you had to change the battery. Non-professionals in general should not open the box, or it might ruin other circuits or cable, or take a wrong line, it is possible to burn PCB board.

Aftering replacing the battery, you must use the battery until run out, and then charge for 10 hours, continuous repeated three times, then in the future running out is not necessary, it can be recharging at any time. and 3 times, do not try to recharge the battery aftering running out, so to protect the battery, extending the battery life.

The most important function of USB SPEAKER is to be able to play the MP3 music in the flash drive or SD card directly. However, sometimes appear to insert a flash drive, but no music is playing, what’s the cause of USB SPEAKER not playing?

First, check out the reason of unusual battery or powered USB SPEAKER. Because when the battery is not enough, plugining the flash disk or SD card may cause unable to read the data. This will cause USB SPEAKER not play songs.

Then make sure the plugin flash disk or SD card has no virus. Because computer viruses might damage or destroy the MP3 music files on the flash drive or SD card. That might effect the flash disk or SD card unreadable in the USB SPEAKER.