XH-A150 PAM8403 bluetooth Amplifier Audio Board 5W*2 Lithium Battery Singing Machine USB TF-Card Dual Channel DIY Mini S

Product parameters Product Name bluetooth Digital Power Amplifier BoardProduct model XH A150Chip model PAM8403Transmission distance up to 20 meters no blocking Supply voltage 5V Micro input Number of channels 2Maximum power 5W 5WProduct net weight 42gProduct size 99 64 24mm without protruding parts Instructions for use 1 Install the TR18650 battery first pay attention to the positive and negative points Battery is not included 2 Two wire link audio speakers red is positive black is negative3 Insert an SD card with song files in the SD card slot or a USB flash drive with song files inserted in the USB interface 4 Open the open key it will automatically read your SD card or USB flash drive and start playing songs If the SD card and USB flash drive are installed at the same time it will read the SD card file and play it by default Package included 1 x Amplifier 1 x 2Pin Connection line