Multifunctional 2in1 Bluetooth Transmitter and Receiver – Make Your Home Entertainment Wireless Upgrade your wired audio devices to Bluetooth with this compact 2in1 wireless transmitter and receiver. Equipped with a 3.5mm AUX interface, it instantly adds Bluetooth capability to speakers, stereos, home theater systems, TVs, and more. Play music or movies from your smartphone through your existing sound system, or connect Bluetooth headphones for private listening without disturbing others. Mini Bluetooth 5.4 Audio Adapter – Stable and LongRange Connection Powered by the latest Bluetooth 5.4 technology, this adapter delivers stronger, more stable connections and longer transmission distances—up to 33 feet. Enjoy seamless sound without interruptions or dropouts. Simply connect it to any nonBluetooth audio device, and it becomes a fully functional Bluetoothenabled unit. Safe Hands Calling – BuiltIn Microphone with Noise Cancellation Designed for convenience and safety, the builtin microphone allows you to answer calls while keeping your hands . Advanced noise cancellation reduces background sounds and ensures clear voice pickup. With a single button, you can answer or hang up calls, and the adapter supports voice prompts from navigation systems—ideal for use while driving. TF Card Mode – Direct Music Playback from Memory Card The upgraded TF card mode lets you play music directly without needing any external device. Insert a TF card, connect the adapter to your vehicle stereo, amplifier, or any AUXequipped system, and enjoy your audio instantly. When using wired headphones, it functions as an MP3 player for direct TF card playback. Supports multiple music formats including MP3, WMA, APE, WAV, and FLAC. Key Benefits and Features: Converts wired audio devices into Bluetoothenabled systems Functions as both a transmitter and receiver for versatile use Compact and portable design for home, car, and travel applications Bluetooth 5.4 for stable, longdistance transmission up to 33 feet Clear, hands calling with builtin microphone and noise suppression Supports TF card playback with multiple audio formats Easy onebutton call control for safety and convenience Practical Applications: 1. Connect to your home theater so you can stream movies or music directly from your phone without cables. 2. Link TV or stereo to Bluetooth headphones for quiet, latenight listening. 3. Use in your car to stream music from a TF card or take phone calls while keeping your hands safely on the wheel.