Product Descriptiondescription:1. Bluetooth version 5.0 is adopted, which has better compatibility, stability and response speed than the previous version2. Compared with FM Bluetooth transmitter, the signal transmission through the AUX port is more stable, faster, and the Bluetooth connection is easier (because the FM Bluetooth transmitter is a mobile phone connected to the transmitter via Bluetooth, and then the transmitter is connected to the speaker equipment in the car through fm fm, among which there are more transmissions, and fm is easy to interfere with radio waves.This is a mobile phone bluetooth connected to the receiver is directly connected to the audio device, so the transmission signal will be better and the connection will be easier)3 . compare with a 3.5 mm adapter to connect to the Bluetooth adapter is easy to lose. this one has a 1.2m spring line, which is easy to store and use (the spring is not stretched for 45cm)4. support hands-free communication and release your hands to make driving safer. built-in high-definition noise-cancelling microphone, clear and echo-free calls5. barrier-free straight line 10 m transmission6. USB direct power supply, you don't need to worry about power shortage and battery life7. gold plated 3.5mm plug, not afraid of oxidation, better sound quality8. memory connection. after the first connection, it can be automatically paired and connected after the next start2Specifications:Product ParametersBrand: kuulaaName: Car Bluetooth 5.0 AdapterModel: kl -yp04output interface: 3.5mmBluetooth version: 5.0material: tpe + aluminum alloytransmission distance: 10 meterslength: 35-100cmcolor bluesuitable for: compatible with all bluetooth devicesthe package include:1 * adapter