Original Xiaomi Aluminum Alloy Portable Mini Bluetooth Speaker For Cell Phone Tablet

Original Xiaomi Aluminum Alloy Portable Mini Bluetooth Speaker For Cell Phone Tablet
  • Sellerdressbuying.info
  • List PriceUS$28.59piece
  • Sale PriceUS$28.59piece
  • ShippingFree Shipping
  • Ratings3,7 (517)

Product Description

Product Details:

1. This is a 2.0 dual channel power amplifier board with remote control function, support bluetooth audio receiver, U disk, TF card player, FM radio;
2. USB decoding: Support WMA, MP3, WAV, FLAC lossless music file format;
3.Expansion interface: support for Bluetooth calls,

Key function control:

[MODE] function conversion: U disk / TF card / Bluetooth / FM radio
[EQ] 5-level preset tuning (U disk / TF card playback is valid)
[VOL + / NEXT] Short press volume (+) / Long press to play the next song; Long press FM to select radio(+)
[PLAY / PAUSE] Play / Pause / Talk; Press and hold FM to select and save automatically
[VOL- / PREV] Short press volume (-) / Long press to play a song; Long press FM to select radio(-)

The main technical parameters:

Dimensions: 59 (W) x 96 (D) x 25 (H) mm, not including the switch socket protruding part
Operating voltage range: DC 10-24V (Current 3-4A, power requirements 20-24V / 5-6A above)
Bluetooth receiving distance:> 8 m (meters) (barrier-free barrier to receive distance, if the phone itself Bluetooth performance is not good, will affect the receiving distance)
U disk TF card disk: support FAT, FAT32 file system, does not support NTFS
Speaker impedance: 4-8Ohm,

Output Power:

12V / 8Ω speakers> 10W x 2; 12V / 4Ω> 15W x 2;
21V / 8Ω> 30W x 2; 21V / 4Ω = 50W x 2;
24V / 8Ω> 35W x 2; 24V / 4Ω> 60W x 2;

This is a real test data on the instrument, the output power and supply voltage and current, speaker impedance, the size of the input source. When the power supply voltage / current is sufficient, the power supply voltage is usually higher, and the relative output power can be larger. Different impedance speakers, the output power is also different, usually smaller speaker impedance power is also easier to do larger.

Product questions:

1. Using amplifier board have a current sound, noise?
This power amplifier, most of them are the use of DC power supply. The board itself does not produce current sound and noise,
The main reasons are:
A: The power supply filter is not good, the current sound caused by the power or audio input is not normal
B: The quality of the input signal is poor, the output of the device connected to the input link is not normal, and the noise is caused by improper audio input
C: The quality of the input cable is poor, the cable is not properly connected, the cable is damaged, and the wiring is vacant
D: Input connected to other playback devices, some devices share the power supply GND to cause noise

2. No sound, no sound in one channel?

A: Speaker is bad, speaker cable was damaged
B: Poor input cable connection, wiring damage, input connected to play the device output is not normal

3 .volume open big breaking sound, broken sound?

A: Insufficient power supply, wiring to confirm the correct wiring, supply current is sufficient
B: Speaker itself poor performance or damage, speaker power is too small or too large
C: Left and right channel speaker (+) (-) output is independent. Can not connect to each other

4. Subwoofer amplifier volume open large speaker broken sound?

A: The lack of power, the line to confirm the correct wiring, power supply current is sufficient
B: The speaker's own power is too large or the audience, the speaker's bass performance is poor. The structure of the speaker box, this
These are not normal will cause broken sound

5. The volume of power is not enough?

A: Power and power supply voltage, the amplitude of the audio signal, the size of the speaker impedance all has a relationship with it

6. Amplifier will burn?

A: The positive and negative polarity of the power supply are reversed, the power supply voltage is too high, exceeding the working voltage
B: If the board requires the use of DC power supply is not directly connected to the AC adapter power supply (this need to add rectifier filter to DC, it can be accessed)
C: To confirm the wiring is correct, then connected to the power supply, wiring errors, short circuits, will cause damage to the key parts!

Package included:

1 x TPA3116D2 Bluetooth Amplifier Board
1 x Remote control Board



TPA3116D2 Bluetooth Amplifier Board 50Wx2 Bluetooth 4.2 Speaker Receive Board FM Radio USB Decode WMA MP3 Calls

TPA3116D2 Bluetooth Amplifier Board 50Wx2 Bluetooth 4.2 Speaker Receive Board FM Radio USB Decode WMA MP3 Calls

TPA3116D2 Bluetooth Amplifier Board 50Wx2 Bluetooth 4.2 Speaker Receive Board FM Radio USB Decode WMA MP3 Calls

TPA3116D2 Bluetooth Amplifier Board 50Wx2 Bluetooth 4.2 Speaker Receive Board FM Radio USB Decode WMA MP3 Calls

TPA3116D2 Bluetooth Amplifier Board 50Wx2 Bluetooth 4.2 Speaker Receive Board FM Radio USB Decode WMA MP3 Calls

TPA3116D2 Bluetooth Amplifier Board 50Wx2 Bluetooth 4.2 Speaker Receive Board FM Radio USB Decode WMA MP3 Calls

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