Solve the problem of no Bluetooth on the desktop, plug and play, no driver installation, and get rid of the complicated cables on the desktop The TV sound is transmitted via Bluetooth, connected to Bluetooth speakers during the day to share with the whole family, and connected to a Bluetooth headset at night to watch a football game without disturbing the rest of the family Connect two earphones at the same time to share with family and friends, and connect two speakers at the same time to combine the stereo surround scene Two connection methods, USB and AUX (3.5mm) are more flexible to adapt to more devices and scenarios. Computers, TVs, and laptops can all be used Built-in enhanced antenna, whole-house coverage, 10 meters transmission barrier-free USB mode: USB is directly plugged into a computer/TV/laptop and other devices that need Bluetooth transmission to output Bluetooth signals AUX mode: USB plug into the power bank/power bank USB interface to connect the device through the 3.5mm audio cable so that the device has Bluetooth function