The Latest Bluetooth 5.0Bluetooth adapter for car equipped with the latest Bluetooth 5.0 to ensure instant pairing and maintains a strong and stable connection. With Bluetooth 5.0 technology, Bluetooth car adapter is backward compatible with Bluetooth 4.2/4.0/3.0/2.0 devices Support Volume ControlBluetooth receiver for car designed with volume up/down button, it is very convenient to adjust the volume of your Bluetooth sound system. Built in Microphone Car Bluetooth adapter built in microphone, One-click multi function button to Answer/ Hang up/ Refuse or Redial a Call. The Bluetooth car receiver can be responded to voice commands via the built-in microphone. Instead of using phone, you can activate voice assistant by holding PLAY/PAUSE button on the adapter for 2 seconds.This Aux Bluetooth adapter for car make your drive more safely and convenient. Instant Setup, Plug and PlayBluetooth car adapter aux designed with ON/OFF slider switch and it will automatically enter into paring mode when you switch on the slider switch. Plug, pair and play. It just works LONG BATTERY LIFE3.5AUX Bluetooth adapter has long battery life and can support 15 hours of continuous use to play music or calls. In addition, the small and portable size of the bluetooth aux adapter is very convenient to use in the car or carry it with you.