KN330 3 in 1 USB Bluetooth 5.0 Adapter Audio Transmitter Receiver with Switch Button & 3.5mm AUX ...

Features:
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 audio cable to play music
5. Built-in microphone, support Bluetooth hands-free call
6. No built-in battery, powered by USB DC 5V interface, support multiple power supply methods
7. Bluetooth 5.0 technology, fast transmission speed
8. Small size, easy to carry

Product specifications:
1. Bluetooth version: Bluetooth 5.0
2. Operating range: up to 10m (under no obstructing objects)
3. Pairing name: KN330 (in receiving mode)
4. TX mode: Transmitter mode, the red LED light is on
5. RX mode: receiver mode, the blue LED light is on
6. Product size: 45x20x11mm

Packing list:
Bluetooth audio receiver transmitter x 1
3.5mm male to male audio cable x 1
Manual x 1