Compatibility issues Let me first say that working with the supplier who sold us was very pleasant. Crossley not so much. This device is only compatible with Bluetooth 5.1 technology. So if you want to run it through the soundbar or any other device, it won't work if it's not compatible. Also, you can't use the auxiliary jack and plug into anything because the player won't work. You must connect the headphones to the accessory you are using in order for it to play. They don't tell you everything. They tell you it's bluetooth in and bluetooth out and that it can be played with external speakers. This is a manufacturer
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