Hey Rusty,

This is apparently a headphone mini-tube amplifier.  Per the review below, you're meant to rubber band it to your android phone, plug in the provided jumper cable, and output it to your headphones or external speakers.  At $100 it's a bit pricey for me; however, it seems like a pretty cool gadget/toy if Hi-Fi is your cup of tea.  Actually, this gizmo may be better described as "Chi-Fi" :)

https://www.headphonesty.com/2019/05/review-douk-audio-little-bear-b4-x/

73 & good night,

Stephen (W2WF)

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