Bluetooth 5.4: UGREEN Bluetooth aux receiver car uses Bluetooth 5.4 technology, with a super strong signal and a more stable connection. UGREEN Bluetooth Aux Adapter Comparison Table. Hi-Fi Stereo Music: This Bluetooth receiver for cars supports AAC/SBC codecs and has a built-in isolation module to filter current noise, providing astonishing high-quality music and clear voice for calls.
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