This Bluetooth 5.1 AUX Audio Wireless Adapter provides an easy way to upgrade your car audio system with Bluetooth functionality. It is designed to allow you to connect your car's audio system to Bluetooth-enabled devices such as smartphones, tablets and laptops without complicated installation. It is perfect for hands-free calling, navigation and music streaming, providing a seamless and modern experience for drivers. Features: Equip your car with Bluetooth: Instantly transform your standard car audio system into a Bluetooth-enabled speaker. Hands-Free Calling and Navigation: Use your phone for hands-free calling Easy to Install: Simply plug the Bluetooth receiver into your car's AUX port and pair it with your Bluetooth-enabled device. Universal Compatibility: Works with any car that has a 3.5mm AUX port. Specifications: Bluetooth version: 5.1 (latest version with improved connectivity and range) Bluetooth protocols: AVRCP (Audio/Video Remote Control Profile) HFP (Hands-Free Profile) A2DP (Advanced Audio Distribution Profile) Product input: 5V (standard USB charging input) Dimensions: 51.2 x 30.6 x 15.4 mm (compact design) Cable length: 1 meter (flexible and convenient, suitable for car placement) Material: ABS housing (fordurable and lightweight) Package list: 1 x Bluetooth Car Transmitter