Description/Features: Rich interface extensions to meet the needs of different devices<br> Wired audio/amplifier upgrade experience Bluetooth function<br> Wireless infrared remote control 5-10M fast and barrier free<br> Car speaker connection enjoying sound quality<br> Support USB playback and enjoy lossless sound quality experience<br> :<br> Bluetooth version: 5.3<br> Input power supply: DC 5V<br> Transmission distance: 15M<br> Power supply : Type-C interface<br> Audio input interface: Bluetooth/AUX/coaxial/USB/MIC<br> Audio output interface: R-L Lotus/AUX<br> Battery: Button battery(with)<br> Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use<br> Material: Aluminum alloy<br> colour: Black<br> Package Contents:<br> 1 x Receiver<br> 1 x Remote Control<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.