Overview:The BT receiver is specially designed for car stereo systems and home audio systems, changing the devices without BT function into BT-enabled ones, and easy to pair with BT-enabled smartphones, laptops, tablets, etc. With this product, you can greatly enjoy wireless music and hands-free call in the car.Features:BT Audio Receiver:Changes the car stereo or wired speakers into BT-enabled ones. Enjoy wireless music and hands-free call in the car.BT 5.0 Technology:Wireless 5.0 technology ensures transmitting strong and stable signals in high quality and high speed.Strong Compatibility:3.5mm audio port design with a 3.5mm audio adapter, suitable for speaker, car stereo, and other sound systems.Plug and Play:Built-in battery ensures long working time and low consumption. Plug and play. Compact and portable, convenient to use.Hands-free Call:With a built-in microphone, it enables hands-free calls to ensure driving safety, bringing you much convenience.Specifications:BT Version: 5.0Operating Distance: 10m (no obstacle)Output Connection: 3.5mm AUX interfaceBuilt-in Battery Capacity: 60mAhWorking Time: about 4 hoursCharging Time: about 1 hourCharge Port: Micro USB 5VColor: BlackSize: 8*5*2cmWeight: 23gPackage List:1 * BT Audio Receiver1 * USB Cable1 * 3.5mm Audio Adapter