ZOACHII Bluetooth car adapter can turn your old car audio/home audio/wired hearphones with standard aux/speakers into wireless instantly. Enjoy streaming music and get rid of long boring car trip. All Bluetooth enabled smart phones. Bluetooth headphones or airPod etc. 1. Car stereo or wired speaker system with standard universal 3.5mm aux audio in port. 2. Wired headphones with standard universal 3.5mm aux audio in port (not work with Beats/Bose etc headphone that with special or recessed port. This Bluetooth Receiver for car features a bullet appearance design which is unique and stylish. Gold-Plated Interface to further improve the authenticity of the sound of music or calls not afraid of oxidation. EU patented unique design with compact mini size for easy portability and storage. ZOACHII bluetooth aux adapter is equipped with Bluetooth 5.0 Chip to achieve faster and more stable transmission with its high-performance prevents loss of the audio signal and low background noise that authentic sound quality is preserved. This Bluetooth to aux adopts CVC6.0 Noise Cancellation. Simultaneous Dual-Device Connection lets you enjoy music while not missing important calls. Automatically Connects to the last connected device without the need for setup. All-in-one MFB designed for easy handling calls such as Answer/Reject/Redial Calling. It takes only 1.5 Hours to fully charge. 50mAh capacity offer up to 4-5 Hours play time for one charge. The Bluetooth aux adapter car kit can Working While Charging so your music never stops. Bluetooth car adapter aux can transmit up to 50ft (15m) without obstacles. The ZOACHII Bluetooth Kit is easy to use that just simply plug in and connect instantly to your phone. Voice navigation guides you on the road ensuring you never get lost while driving. Upgrade your car now and enjoy a more connected and enjoyable driving experience. 1.Plug the Bluetooth adapter headphone 3.5mm Jack to your car stereo or other speaker amplifier stereo devices. 2.Press the MFB Button key for 2 Seconds to power on and will it enter pairing mode automatically. 3.Turn on the Bluetooth of your smart phone to search "ZOACHII BTR005" and tap to connect to enjoy your music wirelessly. (Automatically connect the previous connected device each time once manually power it on ) Built-in 92dB Sensitivity microphone with low latency technology and stable transmission without delay and no static noise. The aux to bluetooth adapter for car supports Hands-free Calling and Voice Navigation. Free your hands so you can have a better experience while driving. Enjoy the freedom of wireless music and hands-free calls effortlessly. Stylish design a perfect gift One button easy control Built-in stronger microphone Rotatable audio jack Volume and tracks control 12 hours playback