1. Bluetooth version: 5.0
2. Operating voltage: USB DC 5V
3. Output connector: 3.5mm
4. Effective distance: about 10 meters
5. Material: zinc alloy + TPU cable
6. Spring wire length: 30-100cm
7. Stretch wire body, can be freely retracted
8. Equipped with high-performance bluetooth 5.0 chip, signal stability, high-speed propagation, rapid response, refusing to lag
9. Connected to bluetooth S-28, the next time you turn on your cell phone bluetooth, start with the car will be automatically back to connect
10. Built-in antenna design, no obstacles within 10 meters of stable transmission
11. Interface gold-plated processing, not afraid of oxidation, better sound quality
Note: delivery only bluetooth adapter, does not contain other items in the picture