Bluetooth Auxiliary Adapter: The Bluetooth receiver helps add Bluetooth functionality to your car or home stereo, allowing music, sat-nav audio and phone calls to be delivered directly through the car system. Not only is it beneficial for car entertainment, but it also saves the cost of modifying old cars without Bluetooth. High-Fidelity Stereo Sound: Equipped with the latest Bluetooth v5.3 chipset, providing a stable connection with 10m low latency. The Car Assist Bluetooth Adapter also supports SBC codecs and has a built-in isolation module that filters static noise to deliver crystal-clear audio over Bluetooth. Hands-Free Calling: The Bluetooth car auxiliary receiver also has a built-in microphone for hands-free calling. In addition, it supports connecting 2 different smartphones at the same time, and you can switch between them freely. Not only does it ensure safe driving, it is also the best travel companion! Plug and Play: Plug and play, connect immediately after the ignition switch is turned on, and disconnect after the car is turned off. Simply plug it into the 3.5mm auxiliary jack and power through the USB port, no need to constantly charge the battery! The UGREEN Bluetooth Auxiliary Adapter supports connecting all Bluetooth-enabled smartphones/tablets/laptops to car auxiliary and home stereos equipped with a 3.5mm jack. Compact Design: The car auxiliary Bluetooth receiver is made of zinc alloy connectors and 10mm reinforced joints for enhanced durability, stylish design, perfect match for your car auxiliary and home audio. In addition, it is also equipped with 0.3M-1.5M high-quality TPE elastic cord to meet your needs in different occasions.