Description:1. Bluetooth 5.0 version has been adopted, which has better compatibility, stability and latency than the previous generation2. Compared with the FM Bluetooth transmitter, the signal transmitted through the aux port is more stable and faster, and the Bluetooth connection is also easier (because the FM Bluetooth transmitter is a mobile phone connected to the transmitter through Bluetooth, and then the transmitter is connected to the speaker device in the car through FM FM, where there is more transmission, and FM is susceptible to interference from radio waves. This is the Bluetooth of the phone that is connected to the receiver. The receiver is connected directly to the O unit by wire, so the signal is better transmitted and the connection is easier)3 Compared to a 3.5mm adapter that requires a Bluetooth adapter to connect, it's easy to get lost. This one has a 1.2 m spring line for easy storage and use (the spring is not stretched 45 cm)4 Support hands-free communication, hands-free, and safer driving. Built-in high-resolution noise-canceling microphone for clear and echo-free calls5. Barrier-free straight line 10 m transmission6. USB direct connection power supply, no need to worry about power and battery life7. Gold-plated 3.5mm connector, not afraid of oxidation, better sound quality8. Memory connection. After the first connection, it can be automatically paired after the next boot to connect 2Specification: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 devicesPackage includes:1*Adapter