[ No More Cords ] This aux Bluetooth adapter built-in high-definition noise reduction microphone not only support wireless music streaming but also support hands-free calling and voice navigation. | [ Super Compatibility ] The USB Bluetooth Aux not only can be used in car but also can be usded for home wired speakers and amplifier stereo audio system to achieve a Bluetooth connectivity instantly. | [ Bluetooth 5.1 Adapter ] The Bluetooth Receiver for car adopted new generation chip 5.1 technology which can quickly pair with smart phone and offer an effective transmission distance of up to 15 meters. | [ Plug-and-Play ] 1.Plug the Aux to Bluetooth into the USB port to turn it on and it will enter pairing mode automatically. 2.Plug the 3.5mm jack into the aux port of your car or other audio devices. 3.Check your Bluetooth list of your phone and tap the name of Zoachii U5 to connect. | [ Auto Connect ] The 3.5mm Bluetooth adapter will always be ready for you and will be connect to your phone automatically once you start the car engine (Make sure that you plug it into the USB port of your car charger not the built-in USB power supply port of the car).