The Yesido YAU24 is a compact 2-in-1 Bluetooth audio adapter that functions as both a transmitter and receiver. Designed for flexibility, it connects wirelessly to smartphones, tablets, or laptops and transfers audio to 3.5mm Aux-compatible devices like speakers, headsets, and car audio systems. With a 10-meter Bluetooth range and USB-powered operation, it's the ideal solution for wireless audio streaming anywhere. Specifications: Function: Bluetooth Receiver + Transmitter Interface: 3.5mm AUX + USB Bluetooth Range: Up to 10 meters Power Source: USB (external power required) Device Compatibility: Smartphones, Tablets, MP3/MP4 players, Car Audio, Speakers, Headsets Length: 3.3 cm adapter with 1.5M cable Color: Black Key Features: 2-in-1 Function: Switch easily between Bluetooth receiving and transmitting modes 3.5mm AUX Adapter: Connects seamlessly to audio systems via Aux jack Wide Compatibility: Works with phones, tablets, laptops, car stereos, and more Stable Bluetooth Connection: Supports up to 10 meters of wireless range Plug & Play: Easy setup—just plug into USB power and connect