2 Channel XH-A153 Lithium Battery Bluetooth 5.0 Dual-channel Stereo Low Power

Main parameters: Product Name: Bluetooth audio amplifier Charging interface: Micro USB Product model: xh-a153 Function type: audio amplification Power supply voltage: DC5V Bluetooth version: 5.0 Ch type: pam8403 * 1 Number of channels: two channel stereo Output power: 3W × two Magnification: 4x Appearance dimension: 93 * 42 * 25MM Installation hole spacing: 86 * 35mm Common problem 1. The Bluetooth connection is not working. A: the Bluetooth indicator flashes regularly during normal operation. If it is on or off for a long time, there may be a problem with the Bluetooth module 2. Mobile phones can be connected, but laptops or desktops can't. A: if the mobile phone can connect and play music, there is no problem with the Bluetooth power amplifier board. There may be a problem with the Bluetooth driver of the computer. The version is too old or some files are miing. It is recommended to uninstall it first and then install the latest driver. 3. When the volume is turned up, the sound will jam intermittently. After the volume is turned down, it can be played normally. A: one of the reasons: the power supply is too small. Check whether the 18650 battery is installed and whether the voltage is too low. You can replace the battery for test; The second reason: 18650 battery is not installed, and the charging port is directly used for power supply, because when charging this product, the current that the power ch can pa through is relatively small (about 200mA). After the sound is turned on, there will be insufficient power supply, resulting in the jamming of the horn. However, the power source can be directly connected to the battery base to sk the restriction of the charging ch. Reason 3: if the power supply is OK, the power of the speaker may be too small. For example, if the output is 3W, but a 1W speaker is connected. If the volume is turned up, there will be a jamming phenomenon and the speaker may be burned out. 4. There is too much noise when playing music, or there is bottom noise when not playing music. A: the function of the power amplifier board is signal amplification. The main source of noise is the radio clutter in the environment amplified by the power amplifier board, so a little noise is normal. If the noise is too loud, you can change the power supply for test or change the horn for test. Package Include: XH-A153*1 ( Battery not included) 2p connecting wire * 2

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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