ESYNIC NFC Bluetooth Receiver Wireless Hands-Free Car Kit Mini Bluetooth 4.0 Audio Music Adapter with 3.5mm AUX Port A2DP APTX for Car and Home Audio System iPhone 7 7Plus Portable Size for Carrying: Small Size and Lightweight Make It Convenient for Carry Anywhere, Perfect for Car Audio System to Save Space.Two Link: YouCan Connect Two Bluetooth Devices at The Same Time. Built With APTX Technology: APTX Technology Guarantees Stable Signal Transmission from Your Device to Your Sound System. NFC Function: Tap-and-Pair and Tap-and-Connect, Fast Connection with NFC-equipped Function, Transmit up to 33 Feet Away with Line of Sight, NFC Function Make Connecting Much Easier and More Convenient. Bluetooth 4.0 and Hands-free: Enjoy Music from Home or Car Stereo System, Mobile Telephone Chatting Free and Relaxed; with Built-in Microphone, You Can Make a Hands-free Call. Easy to Setup and Use: With Plug and Play Standard 3.5mm Audio Cable and 3.5mm Adapter Enable This Bluetooth Receiver to Connect for Audio Devices, Support Your Home HiFi AMP Stereo Speaker Docking Station or Car (Note: The Surface of the Item Has a Plastic Cover, You can Tear it Off.)