XH-A153 PAM8403 Bluetooth Amplifier Board DC 5V 3W*2 2.0 Audio AMP with 18650 Battery Case For Speakers Type-C USB

Features:1. Newly upgraded Type-C interface: XH-A153 Bluetooth power amplifier board upgrades Type-C interface, which can be connected to chargers, power banks, and computers for charging. This design is easy to use in real life2. High performance: This bluetooth power amplifier board has high performance, cost-effective amplifier module can be used together with the receiver amplifier card3. ble: This dial amplifier board is made of high-quality materials, supports 18650 battery power, and can maintain a long service life so that you can use it for a long time4. Easy to install: the installation of the audio amplifier board is very simple and does not require particularly complicated operations;5. Size and pack: This Bluetooth power amplifier board is an amplified audio component with a maximum power of 5W+5W, the size is 93 x 42 x 25mm, and the distance between the mounting holes is about 86 x 35mm, suitable for DIY speakers.s:Product Name: Bluetooth Audio Amplifier BoardCharging interface: Type-C/Micro USBProduct model: XH-A153Function type: audio amplificationPower supply voltage: DC4.2VCharging voltage: DC5V 500MAOutput power: 3W×2Bluetooth version: 5.0Chip type: PAM8403*1Number of s: two- stereoMagnification: 4 timesnsmiion distance: 10 metersAppearance size: 93*42*25nstallation hole distance: 86*35mmCommon problem:1. The Bluetooth connection cannot be connected.Answer: The bluetooth indicator fes regularly when it is working normally. If it is always on or not on, there may be a problem with the bluetooth module.2. The mobile phone can be connected but the laptop or desktop cannot be connected.Answer: If the mobile phone can connect and play music, it means that there is no problem with the Bluetooth power amplifier board. It may be that there is a problem with the Bluetooth driver of the computer. The version is too old or the file is miing. It is recommended to uninstall and then reinstall the latest version of the driver.3. When the volume is turned up, the sound is stuttered and intermittent, but it can be played normally after the volume is turned down.Answer: Reason 1: the power supply is too small, check whether the 18650 battery is installed, and whether the voltage is too low, you can rep it with a new battery for testing;Reason 2: no 18650 battery is installed, and the charging port is directly used for power supply, because when this product is charging, the current that the power chip can pa through is relatively small (about 200mA), and when the sound is turned up, the power supply will be insufficient, causing the speaker to Stuck and stopped. However, the power supply can be directly connected to the battery holder, skipping the limitation of the charging chip.Reason 3: If the power supply is normal, the power of the speaker may be too low. For example, if the output is 3W, but a 1W speaker is connected, if the volume is turned up, there will be jang, and the speaker may be t out.4. The noise is too loud when playing music, or there is background noise even without playing music.Answer: The function of the power amplifier board is to amplify the signal. The main source of noise is the radio clutter in the environment that is amplified by the power amplifier board, so it is normal to have a little noise. If the noise is too large, you can change the power supply for testing, or rep Horn test.The package includes:H-A153*12P cable*2