The EARLDOM ET-BR15 is a user-friendly Bluetooth 5.3 adapter designed for instant wireless audio streaming and safe, hands-free calling. With its plug-and-play functionality, this compact device connects effortlessly to car stereos, home audio systems, and headphones via AUX. It also supports TF card playback, multipoint pairing, and smooth control through dedicated buttons, delivering a complete and modern audio upgrade. Specifications Brand: Earldom Model: ET-BR15 Material: ABS Bluetooth Solution: Zhongke Lanxun Bluetooth Version: 5.3 Input: USB-DC5V Charging Interface: USB-C Connector Type: 3.5mm AUX Compatible Devices: Laptops, MP3 Players, Car Stereo Systems, Headphones, Home Stereo Systems, Smartphones, Tablets Key Features Plug & Play design allows easy installation with no setup required Supports AUX and Bluetooth connections for wide compatibility Built-in microphone enables hands-free calling while driving Bluetooth 5.3 ensures stable, high-quality wireless transmission TF card slot allows music playback directly from memory cards Compatible with Android, iOS, and all audio devices with AUX input