Introducing Wireless Bluetooth to Audio: Bluetooth Receiver turns home speakers and car radios into Bluetooth-enabled speakers, allowing you to enjoy music wirelessly from your smartphone. Adoption of Bluetooth 5.1 technology: Receiver for Home Stereo System is equipped with a Bluetooth 5.1 chip for high-fidelity transmission of Bluetooth audio signals, ensuring seamless music streaming to speakers or existing stereo systems. Supports audio decoding: SBC, AAC, HiFi designed for audio lovers. Switch directly to pairing mode, turn on Bluetooth on your smartphone and select the device to connect. You can connect and use two devices simultaneously without disconnecting the current Bluetooth connection to switch playback devices. (Simply pause the music on the first phone and press play on the second phone to switch.) Product Specifications: Audio connector: 3.5mm AUX Input voltage: 4.8 V – 5.25 V Continuous RX playback: up to 11 hours Receiving distance: up to 10 meters indoors Material: ABS Color: Black Package Contents: 1 x Audio adapter Note: Light reflection and different display settings may cause slight color variations between the item and the image. Measurement allowance is +/- 1-3 cm.