Bluetooth 5.3 Audio Receiver, Wireless Audio Receiver Rca Adapter For Stereo, This adapter does not have a built-in battery and can be powered by a power adapter or USB cable. This product is only a Bluetooth receiver, not a Bluetooth transmitter, and supports NFC to quickly connect to Bluetooth. Bluetooth capability is only available for use with existing stereo/powered speakers/PAs. Transform Your Non-Bluetooth Devices: Upgrade your old stereo receiver or car speakers with our Bluetooth 5.3 Audio Receiver. Simply plug it into your wired speaker device and enjoy wireless audio streaming from your Bluetooth-enabled devices. High-Quality Sound Experience: Equipped with the latest Bluetooth 5.3 chip, our receiver supports A2DP and AVRCP protocols for high-definition audio streaming. Experience perfectly synchronized sound with your movies and TV shows. Dual Device Connectivity: Connect up to two Bluetooth-enabled smartphones or computers simultaneously for added convenience. Enjoy seamless audio playback through the USB or Bluetooth interface, and output to RCA port or 3.5mm headphone jack. Easy Pairing Process: Simply plug in the power supply to enter pairing mode. Use your mobile phone with NFC for quick and hassle-free Bluetooth connection. Say goodbye to tangled wires and enjoy the freedom of wireless audio. Wide Compatibility: Our Bluetooth receiver is compatible with a wide range of devices, making it perfect for home stereo systems, car speakers, and wireless headphones. Experience the convenience of modern Bluetooth technology with our Audio Receiver.