Brand Unbranded
Type Bluetooth USB TF SD Card Decoder

Check the listing for details. Bluetooth 4.1 Audio Decoder MP3 Player Board Micro USB TF SD Card Module 3.7V-5V. Condition: New. Listed at 1.89 USD. When the decoder board is not inserted U disk or TF card, boot the default is Bluetooth mode; when the decoder board plug U disk or TF card, boot the default music mode; MODE key to switch mode. As shown below.

$1.51
$1.89