?What You Get & Warranty Policy? Your purchase includes 1x Bluetooth receiver, 1x cable ties, and 1x user manual. If you have any questions or concerns about our product, please contact our customer support team, and we will address your issues within 24 hours. ?Advanced Bluetooth 5.3 Technology? JOYROOM AUX Bluetooth adapter refines the transmission delays and connectivity issues found in older Bluetooth 5.0 versions. Our Bluetooth 5.3 adapter provides faster, more stable, and smarter connections with minimal sound quality loss over a working range of up to 100 feet. ?Plug and Play? Just plug it into the 3.5mm aux jack and power it through the USB port! Start the car, the Bluetooth receiver will automatically pair with your phone immediately. ?CD-Quality Music? Our upgraded Bluetooth receiver features a TF card playback mode, ensuring maximum retention of music details and enhancing expressiveness and authenticity for truly lossless sound quality. Note: Supports a maximum of 32G TF cards and is compatible with MP3, WAV, WMA, APE, and FLAC formats. ?Crystal-Clear Hands-Free Calls? The ergonomically designed microphone on our Bluetooth aux adapter is positioned closer to the sound source for optimal voice capture. Combined with CVC8.0 noise reduction technology, it effectively filters out road noise, electrical interference, and other disturbances, guaranteeing crystal-clear hands-free communication. ?Bass Boosted & Hi-Fi Stereo?JOYROOM Bluetooth car adapter just click “b” to turn on the BASS sound effect with one click. At the same time, it also uses high-quality HiFi technology to restore the real sound and powerful bass, providing the ultimate listening experience.