UGREEN Bluetooth 5.4 Car Adapter, Hands-Free Call & Noise Cancelling AUX to Bluetooth Adapter for Car, 3.5mm Audio Blue-Tooth Receiver for Cars Stereo Home Speaker – 15H Battery Life

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Enjoy Wireless Streaming Music: This aux bluetooth adapter Convert your old car stereo, wired headphones, or home speakers into Bluetooth-enabled devices. Just plug the bluetooth car adapter into the 3.5mm aux port, and you can easily connect audio devices to mobile phones, tablets, etc. Enjoy wireless music anytime without replacing your audio system.
Upgraded Bluetooth 5.4 Technology: Equipped with the latest Bluetooth 5.4 chip, the aux to bluetooth adapter ensures faster pairing, stronger connections, and lower latency—no more easily dropouts during music, calls, or GPS voice navigation.
Hands-Free Call & Noise Cancelling: Answer calls with a tap—this bluetooth aux adapter for car features a built-in mic and one-button control for hands-free calling or navigation; no need to look at your phone while driving, making your journey safer. Noise cancellation blocks background noise so you can hear and be heard clearly, even on the highway.
15H Long Battery Life: Say goodbye to battery anxiety—this Bluetooth receiver delivers up to 15 hours of use on a single charge, perfect for commuting, working, or road trips. It supports USB-C charging and can be used while charging, ensuring uninterrupted listening.
Support Dual Pairing for Share: This Bluetooth car adapter supports connecting two phones at once and switching seamlessly. You can take turns playing music with friends on a road trip or at a party without constantly reconnecting—just pause one device and play from the other. (Note: Only one device can output audio at a time.)
Note: This is an aux Bluetooth receiver for car, it cannot be paired with Bluetooth headphones/speakers. 2. Do not work on planes.
What can I do if the adapter cannot boot? The adapter might temporarily turn off or be difficult to turn on in cold conditions. You can recharge it or just use a hair dryer to blow it for 1-2 minutes via the hot air, and then turn it on.