Bluetooth 5.0 Audio Adapter, 5-in-1 Wireless Music Transmitter AUX Receiver USB TF Micro SD Card MP3 Player for TV CD PC Car Home Stereo to Wireless Wired Soundbar Headphones Speakers

[5-in-1 Powerful Adapter] It can work as Bluetooth audio Transmitter, Bluetooth audio Receiver, USB U-Disk Music Player, TF/Micro SD Card Music Player and car Hands-free Tool.
(Note: Only one mode can work at a time, these modes can not work at the same time. When using the Bluetooth function, only one Bluetooth device can be paired at a time. ) [With a Big Knob] You can use this knob to adjust the volume, Answer/Reject/Redial calls while driving. The LED light around the knob not only make it look very beautiful, but are also very convenient to use at night. [Built-in Battery] You can use it in any situation even without AC outlet. It can be fully charged in 1-2 hours and last for 6-8 hours, perfect for all-day listening or long road trips, you also can use it while charging.
(Note: Power adapter is not included) [Large LCD Screen]With this display screen, you can see the mode and status information: TX, RX, USB, TF and Volume Level, which is a special feature among similar products.