KN330 3 in 1 USB Bluetooth 5.0 Adapter Audio Transmitter Receiver with Switch Button & 3.5mm AUX Interface Tag-11 inch 2021 Support the voice broadcast function

Support the voice broadcast function of payment collection

the shape is simple and beautiful

31inch * 2

5MM audio access port

The honeycomb is convectively cooled

KN330 3 in 1 USB Bluetooth 5.0 Adapter Audio Transmitter Receiver with Switch Button & 3.5mm AUX Interface Tag-11 inch 2021 Support the voice broadcast functionFeatures: 1. It can help home speakers, wired earphones, car speakers, etc., do not have Bluetooth to connect with your mobile phone via Bluetooth 2. When using it on a computer, there is no need for an audio cable, no driver, plug and play (only audio cannot transmit data) 3. With a switch, you can switch between transmitting mode and receiving mode at any time, both modes are two channel stereo 4. The 3. 5mm AUX interface needs to be connected to an