If you have any old speaker systems lying around, this $8 dongle will bring them into the present with seamless Bluetooth streaming capabilities.

All you have to do is plug one end of the Mpow Streambot Slider into a USB charging port, and connect the other end to your speakers via the included 3.5mm audio cable. Then, just connect your phone, and enjoy the music. [Mpow Streambot Slider Bluetooth Music Audio Streaming USB Receiver Adapter, $8 with code OO6FDEZ9]

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